The faction quest for the House of Sorrows "Voices of the Dead" is bugged. If you leave the zone prior to talking to Bisarane, you get effectively locked out of the House of Sorrows and are unable to progress that factions questlines.
I have completed this game and all of the current DLC but am unable to finish this part. It makes me sad in the pants everytime I look at my quest journal.
Please patch in an unlocked door or something.. I beg you!