Several times now after finishing an animation and exporting the sprites, when I return to them a few days later they have been damaged and mixed up. For example I have a character with an attack, run, and a death animation (see attached image). Then when I came back to it today all the keyframes in the run animation had disappeared and blood from the death animation appeared in the run animation even though it wasn't there in the first place. Is this to do with how I organise the folder or something?