heya, I'm trying to get this VRM model to work in vrchat, when I import using univrm, everything works perfectly except the mouth. i know its because the jaw bone is toggled to a hair piece but since I can't edit the avatar config for a prefab i have to resort to import through blender/cats.

the issue i have with that is it always seems to lose the shader details when I do that, so I'm stuck editing each shader setting for each material copying the settings from the vrm unity import.

what the fuck am i doing wrong here.