I am a beginner to Blender, using version 2.8, and I'm trying to model a human following the Cartoon Character Modeling tutorial on Skillshare. We are using rigify with the new pitchipoy rig to rig the model. I have already created a metarig and moved the bones and generated the rig, and it all seemed to be working correctly except for one problem.
The problem is that when the lips or jaw are moved using any of the lip.B bones or the jaw_master, the teeth also move and deform weirdly as if they are part of the skin. This means that when the mouth opens, you cannot see any teeth as they incorrectly follow the movement of the lips.
This issue doesn't seem to be happening in the tutorial I am following and I'm not sure why. From what I can tell I set up the metarig correctly, and I don't think the model in the tutorial needed any extra configuration. If anyone has any ideas please let me know.