Oh here I found it! (Sorry I’m bored right now so I have nothing better to do than to read the forums) The glitched stun is a few posts down. Though I’m not sure from where the stun came from, as the OP’s enemy only had Fortress, Gammond, and Salvatore left. Still, it’s the same thing. One post down also mentions it happens when Baron cancels his bronze skill during cast animation.