The problem is that the Alias option is not working - it can be checked or unchecked, it doesn't make a difference. For example - I have a hero who has 2 left legs that look identical, pixel to pixel. And I want them both to be exported (NOT just one). When I uncheck the Alias option - Spine still exports that two left legs as one left leg. I have to change few pixels on one of the left legs to let it be exported too. But the Texture Packing solves the problem with not working alias, thanks Erikari 🙂