Guild Wars 2

Hi, I just wanted to report a bug we had in our run today.
While we were doing AC path 2, on the part where we have to kite the mobs around while other use the traps, we weren’t able to start the event.
Detha did follow us, but we couldn’t talk to him to start it.
Anyone else has had this bug or knows a way to get rid of it?

I’ve had this happen twice now. First time happened between a disconnect of my computer, so I can’t give any information on it.

Second time: We started the task, and Detha ran over to the trap. The slimes aggroed Detha, and we went over to slay the slimes. Detha then ran to the center of the room. No event mobs spawned, and talking to Detha just resulted in one-liners.

This was running in Sanctum of Rall, from 23:15 to 00:20 (yes, our group sucked -- though we beat the spider without stacking). I was the instance owner.