GoDGiVer said:
" ...Why it's the Silver Bullet animation for most of these bugged abilities, I don't know... "
I'm completely guessing, but I'd say that'd be a great way to debug. Make a default animation in the event of some sort of failure, be a weird specific one. Then go step by step looking for the point that triggers the call, and watch it step into/call Silver Bullet. When the only time you see Silver Bullet is when a player Activates one, you know you've stomped out all the failed animations. Until something else trips it off again