I don't know how to remove animation of foot. Can't see nothing in Transform line. Of course I used Remove Object Animation. It seems that animation is stored somewhere in Composer mode, but I don't see access to Timeline from there.
It is very annoying second time it happened to me. Please help !

Nevermind - just removed a sprite, and got back to STAGE MODE, thank add once again image and it works. Kinda buggy, strange behaviours.