Every time I unwrap my mesh, the texture jumps around!
Before Unwrap (look at the label):
As you can see, the label on the bottle has jumped around. I can't bake it like this. When I try to move vertices around and get the label back in the right place, I destroy the arrangement of the UV map.
What can I do to keep all the textures in place after unwrap? I tried both the smart unwrap and the lightmap pack unwrap, and the position of the label jumped on both.