Mesh Disappearing On Mouse Move

Hello! I’m new to threejs and have been trying to recreate this really cool cursor follow example inside my own nextjs project:

I can get the model to load on the page as long as I don’t move the cursor, but as soon as the mouse movement activates the entire head geometry completely disappears.

I’ve read about some similar issues here being solved with frustumCulled being set to false, but I’m afraid I’m in over my head and haven’t been able to get a working solution. Any help reproducing this would be incredibly helpful!

did you fix it? i can move the mouse and it follows it with the eyes, nothing disappears.