Everyone seems to run into a bug at the end of this quest, I ain't even lucky enough to find out if my game will bug at that point.

The second I enter Irkngthand, Karliah and Brynjolf start slowly walking out of the tomb, disregarding traps and only stopping to fight enemies. I talk to Karliah, the quest updates as planned "Locate Mercer", and then the two are supposed to follow me.

Instead, they just walk out of the tomb. Won't follow me, won't do anything, and when I follow them out? Karliah flies into the wall and glitches up there like a monster.

No idea what's going on, 1.1 won't download for me either. Maybe that's what's causing this.

Bump, just updated with 1.1, no changes, the quest is still buggy. Can somebody help, please? I'm sure there's nothing anybody could ACTUALLY help with, but maybe someone ran into a similar glitch.

How about you continue through irkingthand?
Or are you one of those people that can't kill anything yourself?