when importing a gltf file I get an console error saying:
THREE.GLTFLoader: Unexpected light type, “3”."
I cannot find any information about this on internet. Neither when looking at the GLTFLoader page it says anything about the lights it does or does not support.
One of the BabylonJS glTF exporters has a bug and is writing glTF lights incorrectly. I’d suggest disabling export of lights or removing lights from the scene. The bug should be fixed soon.