Right after you kill the centurion guardian and walk past a balcony with a ballista on it, the game crashes. Going by the arrow I think this is the last area of the dungeon, but I don't know.

Anyone else having this issue? There are random crashes, and there's this. Normally when Skyrim calls it quits on my PC, it will shut down and exit to desktop instantly. In this ruin, it just hangs until i force-quit using task manager. Also peculiar that it happens in the same spot.

oh look another random location that always ctd people

its probably same bug

like bonechill and tons of other

I had this too, I think it's related to the bat animation. Try entering the area backwards (not looking toward the bats) until the animation ends, then you should be fine. Worked for me...
Good luck

Same here. )=