I know this should be on bug tracker, but I wanted to warn you.
During the “insanity phase” there is some kind of fatal error, if you are a Blood DK, it happens to me three times, the game crashes and turns itself off.
Luckily for me nobody died, but is only in the “insanity phase”
Can confirm, game had a fatal crash during insanity phase on this boss. Rebooted, and immediately had another fatal crash since the insanity encounter was still active. This has happened everytime I’ve attempted this encounter.
I did some more testing today, and the above poster who mentioned Dog Tags was correct. If you go into IceHud’s options and disable Dog Tags at the top of the option page, no more crashing.
Weirdly I had my game straight up not load when trying to get into Ankh today. Something that has quite literally never happened to me in WoW… well… ever.