Cannot interact with anything after beating Praetor in his Mausoleum

Title.

Beat the Praetor in the Mausoleum in act 1 and now I cannot interact with anything. I can't pick up items, I can't use checkpoints or portals or waypoints. Tried respawning at checkpoint, after logging out and back in, no change.

I would try dying, but I'm playing HC, so I'd rather not. Playing deadeye with a spear and a skeleton warrior sceptre. I've tried changing my weapons and no change. Nothing I've done has made any difference.

Any advice would be welcome. This bug is frustrating.