The whole 'parallel' blendshapes in the blendshape editor is weird and strange. I didnt understand it in the first post. Its as if your teacher is having you do this so you can use the BSeditor as a control system GUI and so you can stay organized in it. This is the _wrong_ approach. You never ever see this workflow…
They shouldn't? O_o While poking around I discovered the "Paint Blend Shape Weights Tool" and noticed that every blend shape's weight maps flooded the entire mesh with white, so I thought it might be a good idea to change that. It stopped the weird vertical stretching, but now the lower lip is slipping when I rotate the…