Well, when mobs behave like that it's usually that a full reset wasn't allowed to take place due to some sort of pathing glitch where the mobs got stuck. When this happens in an instance, you can usually continue to attack the npc (or find an area to stand that allows the stuck npc to respond to you) and after a while it will become vulnerable to your attacks and stop evading. Most commonly I've seen this happen when a mob's evading due to being unable to path to whatever is on its hatelist. It'll change it's attention to you if you play with it enough usually.

The problem here is that the place you have to stand to do your thing to the stuck npcs we had makes it so that we would have to have our players who we send in to kill the stuck mobs be very careful and move back to a safe area when the Curator returns so we don't aggro the guy.

The Curator being linked to the weird glitchyness of the area is trouble though, as we can hope that when the stuck mobs are killed he starts behaving normally as well. There could be a change that takes place when mob respawn occurs too. 

The other thing to try is to fight the Curator away from the area those mobs were stuck at. The weird behavior could be linked to proximity to the &quot;stuck point&quot;! 

It may be worth a shot to try again and see if we can kill the trash that was stuck. Just can't be certain that