My Wife and I just tried to do Sunken Temple of Qarn (normal) and we had some horrid lag, with doom ran across the plate and died 3 seconds later (from the doom that was never removed), got raised took 10 seconds after accepting it to change the position of the camera to the healer, then another 10-15 for my character to get raised, I hope SE is able to get this fixed soon.
PS: I like the April Fools fun SE is having lol (the Forum names/avatars)