Kog'Maw 's passive bug!
So I faced a couple of Bot matches where there is a Kog'Maw and after I manage to beat him he goes into his passive and plays that wierd, eerie sound he makes when he dies, BUT! I hear it costantly like over and over even if he's dead. If you don't know what I mean listen to this and imagine hearing it constantly. It's at 0:10