Texture paint disappeared after dirty vertex colors
After duplicating the chest and making dirty vertex colors (on the duplicate), when I went back to the original chest all the texture paint had disappeared. Nothing I tried would bring it back, even though the UV maps seemed to still exist and were painted. I did notice some of the maps had changed shape, I don't know how or when that happened, especially since I was only working on the duplicate. I'm going to start over from UV unwrapping step, but how do I avoid this happening again?