Mouth open doesn’t follow head angle XY

Malwareious

I did the open mouth first then added the head angles XYZ in hope the mouth open would follow when I was done but it doesn’t. I tried deleting all key forms and starting the open mouth over again but it still doesn’t follow the XYZ parameters. How do I fix this?

Ochus

Usually all the mouth parts get put into a warp deformer which is a child of the Head Rotation deformer- and that is what gets the X/Y movements. The mouth shape movements themselves are assigned to the mouth textures within the deformer- is that what you did?