Okay new problem reared its ugly head.
Note the BONE TESTER field on the top of the screen.
Expectation: Mitzi's head turns around when I change it.
Reality:
I'd already confirmed before that the face mesh' bone assignments were correct, but the rest of the cat clearly isn't.
This is what you get when every single goddamn tutorial uses Assimp and you have UFBX instead.















