Distortion when playing animations in a row

hello i am having difficulty executing an animation followed by another it presents Distortion when playing animations in a row and apparently does not execute them all in sequence

My GLB https://drive.google.com/drive/folders/1Gr7-RorVw-N__jTwXQt-exAgA_a5kbcR?usp=sharing

My js

var speech = ""
var txt = "";
var res = "";
var Res_Minu = "";

function record() {
    var recognition = new webkitSpeechRecognition();
    recognition.lang = "pt-BR";

    recognition.onresult = function(event) {
        // console.log(event);
        document.getElementById('speechToText').value = event.results[0][0].transcript;
    }
    recognition.start();
    record.start();
}

let camera, scene, renderer;

var mixer, clock;

function init() {

    camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 100);
    camera.position.z = -30;

    scene = new THREE.Scene();
    scene.background = new THREE.Color(0xffffff);

    const gltfLoader = new THREE.GLTFLoader();
    gltfLoader.load('bone10t.glb', function(gltf) {

        scene.add(gltf.scene);
        var animations = gltf.animations;
        var keyRotationClip = THREE.AnimationClip.findByName(animations, 'A');
        var keyRotationClip1 = THREE.AnimationClip.findByName(animations, 'B');
        var keyRotationClip2 = THREE.AnimationClip.findByName(animations, 'C');
        var keyRotationClip3 = THREE.AnimationClip.findByName(animations, 'D');
        var keyRotationClip4 = THREE.AnimationClip.findByName(animations, 'E');
        var keyRotationClip5 = THREE.AnimationClip.findByName(animations, 'F');
        var keyRotationClip6 = THREE.AnimationClip.findByName(animations, 'G');
        var keyRotationClip7 = THREE.AnimationClip.findByName(animations, 'H');
        var keyRotationClip8 = THREE.AnimationClip.findByName(animations, 'I');
        var keyRotationClip9 = THREE.AnimationClip.findByName(animations, 'J');
        var keyRotationClip10 = THREE.AnimationClip.findByName(animations, 'K');
        var keyRotationClip11 = THREE.AnimationClip.findByName(animations, 'L');
        var keyRotationClip12 = THREE.AnimationClip.findByName(animations, 'M');
        var keyRotationClip13 = THREE.AnimationClip.findByName(animations, 'N');
        var keyRotationClip14 = THREE.AnimationClip.findByName(animations, 'O');
        var keyRotationClip15 = THREE.AnimationClip.findByName(animations, 'P');
        var keyRotationClip16 = THREE.AnimationClip.findByName(animations, 'Q');
        var keyRotationClip17 = THREE.AnimationClip.findByName(animations, 'R');
        var keyRotationClip18 = THREE.AnimationClip.findByName(animations, 'S');
        var keyRotationClip19 = THREE.AnimationClip.findByName(animations, 'T');
        var keyRotationClip20 = THREE.AnimationClip.findByName(animations, 'U');
        var keyRotationClip21 = THREE.AnimationClip.findByName(animations, 'V');
        var keyRotationClip22 = THREE.AnimationClip.findByName(animations, 'W');
        var keyRotationClip23 = THREE.AnimationClip.findByName(animations, 'X');
        var keyRotationClip24 = THREE.AnimationClip.findByName(animations, 'Y');
        var keyRotationClip25 = THREE.AnimationClip.findByName(animations, 'Z');

        mixer = new THREE.AnimationMixer(gltf.scene);
        var action = mixer.clipAction(keyRotationClip);
        var action1 = mixer.clipAction(keyRotationClip1);
        var action2 = mixer.clipAction(keyRotationClip2);
        var action3 = mixer.clipAction(keyRotationClip3);
        var action4 = mixer.clipAction(keyRotationClip4);
        var action5 = mixer.clipAction(keyRotationClip5);
        var action6 = mixer.clipAction(keyRotationClip6);
        var action7 = mixer.clipAction(keyRotationClip7);
        var action8 = mixer.clipAction(keyRotationClip8);
        var action9 = mixer.clipAction(keyRotationClip9);
        var action10 = mixer.clipAction(keyRotationClip10);
        var action11 = mixer.clipAction(keyRotationClip11);
        var action12 = mixer.clipAction(keyRotationClip12);
        var action13 = mixer.clipAction(keyRotationClip13);
        var action14 = mixer.clipAction(keyRotationClip14);
        var action15 = mixer.clipAction(keyRotationClip15);
        var action16 = mixer.clipAction(keyRotationClip16);
        var action17 = mixer.clipAction(keyRotationClip17);
        var action18 = mixer.clipAction(keyRotationClip18);
        var action19 = mixer.clipAction(keyRotationClip19);
        var action20 = mixer.clipAction(keyRotationClip20);
        var action21 = mixer.clipAction(keyRotationClip21);
        var action22 = mixer.clipAction(keyRotationClip22);
        var action23 = mixer.clipAction(keyRotationClip23);
        var action24 = mixer.clipAction(keyRotationClip24);
        var action25 = mixer.clipAction(keyRotationClip25);



        function ler() {
            res.forEach(ler);
        }
        document.getElementById("btnSubmit").onclick = function() {

            txt = document.getElementById("speechToText").value;
            Res_Minu = txt.toLowerCase();
            res = Res_Minu.split("")


            switch (res[0]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[1]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[2]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[3]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[4]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[5]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[6]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[7]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[8]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[9]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[10]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[11]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[12]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[13]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[14]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
            switch (res[15]) {
                case 'a':
                    action.loop = THREE.LoopOnce;
                    action.play();
                    break;
                case 'b':
                    action1.loop = THREE.LoopOnce;
                    action1.play();
                    break;
                case 'c':
                    action2.loop = THREE.LoopOnce;
                    action2.play();
                    break;
                case 'd':
                    action3.loop = THREE.LoopOnce;
                    action3.play();
                    break;
                case 'e':
                    action4.loop = THREE.LoopOnce;
                    action4.play();
                    break;
                case 'f':
                    action5.loop = THREE.LoopOnce;
                    action5.play();
                    break;
                case 'g':
                    action6.loop = THREE.LoopOnce;
                    action6.play();
                    break;
                case 'h':
                    action7.loop = THREE.LoopOnce;
                    action7.play();
                    break;
                case 'i':
                    action8.loop = THREE.LoopOnce;
                    action8.play();
                    break;
                case 'j':
                    action9.loop = THREE.LoopOnce;
                    action9.play();
                    break;
                case 'k':
                    action10.loop = THREE.LoopOnce;
                    action10.play();
                    break;
                case 'l':
                    action11.loop = THREE.LoopOnce;
                    action11.play();
                    break;
                case 'm':
                    action12.loop = THREE.LoopOnce;
                    action12.play();
                    break;
                case 'n':
                    action13.loop = THREE.LoopOnce;
                    action13.play();
                    break;
                case 'o':
                    action14.loop = THREE.LoopOnce;
                    action14.play();
                    break;
                case 'p':
                    action15.loop = THREE.LoopOnce;
                    action15.play();
                    break;
                case 'q':
                    action16.loop = THREE.LoopOnce;
                    action16.play();
                    break;
                case 'r':
                    action17.loop = THREE.LoopOnce;
                    action17.play();
                    break;
                case 's':
                    action18.loop = THREE.LoopOnce;
                    action18.play();
                    break;
                case 't':
                    action19.loop = THREE.LoopOnce;
                    action19.play();
                    break;
                case 'u':
                    action20.loop = THREE.LoopOnce;
                    action20.play();
                    break;
                case 'v':
                    action21.loop = THREE.LoopOnce;
                    action21.play();
                    break;
                case 'w':
                    action22.loop = THREE.LoopOnce;
                    action22.play();
                    break;
                case 'x':
                    action23.loop = THREE.LoopOnce;
                    action23.play();
                    break;
                case 'y':
                    action24.loop = THREE.LoopOnce;
                    action24.play();
                    break;
                case 'z':
                    action25.loop = THREE.LoopOnce;
                    action25.play();
                    break;
            }
        }

        // center model
        gltf.scene.scale.set(2, 1, 2);

        gltf.scene.position.x = 0; //Position (x = right+ left-) 
        gltf.scene.position.y = -5; //Position (y = up+, down-)
        gltf.scene.position.Z = 5; //Position (z = front +, back-)

        const object = gltf.scene;

        const box = new THREE.Box3().setFromObject(object);
        const center = box.getCenter(new THREE.Vector3());

        //	object.position.x += ( object.position.x - center.x );
        //	object.position.y += ( object.position.y - center.y );
        //	object.position.z += ( object.position.z - center.z );

        // disable view frustum culling

        object.traverse(function(child) {

            child.frustumCulled = false;

        });


    });

    let hemiLight = new THREE.HemisphereLight(0xffffff, 0xffffff, 0.61);
    hemiLight.position.set(0, 50, 0);
    scene.add(hemiLight);

    let d = 8.25;
    let dirLight = new THREE.DirectionalLight(0xffffff, 0.54);
    dirLight.position.set(-8, 12, 8);
    dirLight.shadow.mapSize = new THREE.Vector2(1024, 1024);
    dirLight.shadow.camera.near = 0.1;
    dirLight.shadow.camera.far = 1500;
    dirLight.shadow.camera.left = d * -1;
    dirLight.shadow.camera.right = d;
    dirLight.shadow.camera.top = d;
    dirLight.shadow.camera.bottom = d * -1;
    scene.add(dirLight);

    //

    renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.setPixelRatio(window.devicePixelRatio);
    renderer.setSize(window.innerWidth, window.innerHeight);
    document.body.appendChild(renderer.domElement);

    clock = new THREE.Clock();

    //

    const controls = new THREE.OrbitControls(camera, renderer.domElement);

    window.addEventListener('resize', onWindowResize, false);

}

function onWindowResize() {

    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();

    renderer.setSize(window.innerWidth, window.innerHeight);

}

function animate() {

    requestAnimationFrame(animate);

    if (mixer) {

        var delta = clock.getDelta();
        mixer.update(delta);

    }

    renderer.render(scene, camera);

}

init();
animate();

My html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Trial</title>

    <script src="js/three.min.js"></script>

    <script src="js/OrbitControls.js"></script>

    <script src="js/GLTFLoader.js"></script>

    </script>

</head>

<body>

    <div id="area">

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I may have missed it somewhere - but I couldn’t find a part of your code that resets or fades out previous animation before starting a new one.
Animations in animation mixer blend together unless you unset them manually - you can see it here if you move all action weights to 0.5.
If you start a new action without reseting the previous one, the last frame of the previous (finished) animation will blend with the new one, adding distortion. It may help using fadeOut to unset previous animation before playing a new one.

I will try your suggestion

did not work