I'm trying to work out if it is a known issue in the 1st Bards College quest visit to "Dead Men's Respite" or not.

I can enter and play the first part of the dungeon but when I get to the part when a gate closes behind me and am attacked by two strong drauger. It then has a room which is a light blue color only and when I enter it I fall out of the dungeon (clipped out).

Is the Bards College quest able to be completed or is it bugged and unplayable?