Quote Originally Posted by Umo View Post
That's what you get when they use their WS (I think it's called "Cluster Geyser" or something like that). Sometimes you just find any of them havin' that look without a reason, so maybe it's just a bug (or someone that had fight them, died because of the WS and left the mob alive without its clusters).
It's also their incapacitation. I've never seen that move before (or fought them that much) so I wasn't aware they could break like that too.