I'm having issues with the corner of the mouth section of my rig. When I move the jaw up and down I get sharp deformations in the mesh that looks like this:
How do I fix this?
The file is located here: https://drive.google.com/file/d/1CRH3UKruwP-dywsDXeF-6dn-580X6jYG/view?usp=sharing
Any help would be greatly appreciated!