So..I just started the "Night to Remember" quest and I'm at the part where you go to Rorikstead to talk to farmer Ennis about clues for Sam and the staff.
Well I found him and talked to him but the quest isnt updating. The arrow pointing to objective location is still over the head and he still has the option to talk about the same question.
I have the same problem as well. The first ten hours of this game went by bug free with no problems at all.. now it seems every other quest or incident theres a bug. ;/