First pass through this mission, aggro'd one of the Teir'Dal before hailing Patrol Leader Klugg and had to kill it. Doing this didn't give a kill update for the slain Teir'Dal after hailing Patrol Leader Klugg leaving the mission unable to complete. There is precedent on other missions that slain mobs in earlier steps will still provide the update, therefore I see this one as a bug.
Category: Quest [Can Repro] Date/Time: Thu Mar 16 22:10:49 2023 Character: Level 120 doesn'tmatterwhatclass Zone: Blightfire Moors anniversary mission Location: 1823.65, 2997.36, 255.90, 158.45 Description: If you aggro a Tier'Dal invader before killing Klugg, and manage to kill it, then there are only 9 remaining alive. It's no longer possible to finish this mission as a result. Fix: Either count the death of the invader as a future task step, or don't let them be targetable / aggro until after Klugg is dead.
Was not paying attention and died to a Tether, took rez and finished killing them all. Mission was bugged at that point. I must have died right before it, but the other 2 characters lived and did not get kill credit either. So multiple points of failure in this mission forcing a restart.
Went afk once in the tower and came back with a mob on agro list. Merc healer was tanking it just fine though.
Also, the two Teir'Dal in the rooms on the different floors run away from you 100% of the time if pulled from entrance to the rooms.