Broken OBJ in WebGLRenderTarget, Safari 15

Hi everyone!
I have faced a strange problem when rendering an OBJ model in WebGLRenderTarget (see the screenshot Screenshot by Lightshot). Though there’s no problem when rendering it to the main WebGLRenderer. The problem appears in Safari 15, MacBook Pro (Screenshot by Lightshot)

A live example is here Document
And here is the source code GitHub - antonbobrov/threejs-WebGLRenderTarget-bug

I hope anyone helps to find out a solution. Many thanks!