Corrupt Qeynos guard bug
 

I was in North Qeynos with my Ranger. I was casting camoflauge when a corrupt guard, Guard Urius started to attack me. He was lower level so he wasn't able to interrupt my cast. As soon as it completed, the guard disappeared! The only message it gave was that I faded away and then I was no longer targeting Guard Urius and he was nowhere in the zone.

I tried it with another corrupt guard, Guard Mezzt but it didn't work. Don't know if this was specific to that guard, where we were at the time or what.

It is likely he despawned when day time arrived. Urius is a night time spawn which is replaced by Wenbie who patrols during day.

Oh, ok. That was awesome timing!