I'm not a teckie... but I have found that many of the glitches in many vanilla quests are resolved by saving, exiting the game completely (to desktop) reloading, and reentering previous location. For example, I entered DB sanctuary (where Momma is) and most of the statics were gone... weird. I shut the game own, without saving. Reloaded, reentered, all fine. Now when a quest seems to misfire, or not advance, etc., I do just as I described above, however, before re-entering the 'problem' location, I go somewhere else, enter a new 'inside' location, and then travel back to 'problem' location. Re-enter. Usually 'fixs" the quest progression. Worst case if you do this, Fearless leader says "Hey you, get back to work on your contract, yada, yada,... now go to Dawnstar DB Sanct... should be OK. If not (sorry) its beyond me.... (lets hope)