So I'm making this simple tower defense game and everything is going great. Until I try to make towers upgreadable. I have 3 types of towers and each has 7 levels. I put different looking versions (levels) of towers in different frames of default animation. Now. When I build, lets say, two red towers and they're on first level and upgrade one of them, thus changing its frame from 0 to 1, the other one changes too and I have no idea how to fix this. So please help.
Here's the capx (I know it's a mess)