Did anyone try Thaurlach in the Rift of Nurz-Gashu since the HD Update? I tried it about a week ago. After soloing the rest of Nurz Gashu two friends joined for Thaurlach due to the fights mechanism. The figth went without any problems until we came to the point where Thaurlach is freed. The friends of mine where waiting at the room left and right for the door to open whereas myself waited at the sigil together with the Glathliriel (spelling?) ready to take Thaurlach as soon as he gets attackable. But even before I could do anything (Thaurlach still green) he one-shotted Glathliriel and the fight was over. First time I thought I had been unaware of him getting active, but two other tries, same result.
Any ideas or known bug?