So here I am, running my 4th Dragonborn, and after wrapping up the Dawnguard quests I decide to go to Skuldafn (Alduin's eyrie) to wrap up the main quest. So nothing stands between me and Nakhrin and the gate to Sovngarde but the puzzle/dragon claw door. Except that when I first get to it, I can't move the circles. I head out of the area to see if it needs to reload or something, return to try again, and nothing happens. I go all the way to the loading door, step into the previous level and go back in to the section, and when I return I can then move the circles and arrange the symbols in the right position. But when I hit the lock with the dragon claw, nothing happens. No opening door, no way to progress. Talk about a game ending bug: my new guy is stuck now in this place, with no prior save outside the temple to see if that might set things right. I'm thinking of heading back out and step out of the temple completely to see if that might fix things, but I'm not getting my hopes up. Has anyone else ever run across this bug and know how to fix things?