During the fight the group was killing adds after his 3rd phase where we took him to 25% and he began running into the room where he activates the clockworks. When he reached the location where he should become active he vanished, and we were dropped out of combat. This happening to anyone else?
Bastion's not bugged in heroic, it's just now most groups actually have to follow the script instead of just a straight out burn without paying any attention to anything else in the room.