I'm doing the quest "Prophet" on the vampire side. I've done it multiple times, with and without Serena, and have loaded saves from before I even acquired the quest to try again, but the problem persists. After I "Defeat the enthralled Moth Priest" and "Use your Vampire's Seduction power on the Moth Priest", he just stands there. I feed on him, and nothing happens. The journal says to "Feed on the Moth Priest to make him your thrall", yet feeding him does nothing. I've entered and exited, knocked him out and seduced him again, waited for hours, but nothing changes.
This is not the first glitch I've encountered. This is the first glitch I've encountered that I wasn't able to work around. In fact, when I first installed this DLC it didn't work, (would freeze up before loading) and after the 5th redownload I find that all my saves have been corrupted. Whatever, change is good, I'll start a new character. Finally it works, I get up to level 10 and find glitch after glitch after glitch, and now I find myself with a glitch that completely stalls the progress of the DLC I paid for. WTF Bethesda?
Can anyone help me with this blasted Moth Priest? I'm at my wit's end.