Skyrim Season Unending Issues

Has anyone else had the pleasure of the last stage of Season Unending yet? (I guess I should warn, spoilers ahoy but I won't be too specific) You are negotiating a peace between some people who don't like each other all of whom are hot tempered and like to get up and make long winded (unskipable) threats if you don't choose their side.  Also for some reason (Anyone else have this problem?)  one of the NPCs is glitchy, and when he goes to speak the whole thing goes quiet and I can't do anything, loading an earlier save is ineffective.  Anyone know a console command to reset him or just set the quest status to complete, it's part of the main arc so if this doesn't go away I'm trapped :-(