I seem to have made a really dumb mistake while on Alcander's quest, in the room with the 4 corrupted constructs. My PC got cornered by two of them and backed up against the impassable debris stuff on one end of the room, and when my other two finished off all the controllers, my guy was caught between the now-inert ones and the stuff he can't walk over.
I'd compulsively quicksaved as soon as the battle was over, before I realized my dude was stuck, and now I have no way of accessing the staircase to get to the next room, or to move him at all. Is there any way to get him unstuck, or do I really have to go to my autosave and do the entire quest over again? If he were a shadowwalker I could shadowstep him out, but sadly, he's a tinkermage.