Everything prior to the exception code can be different, but everything after is always the same. Any clue on how I can figure out what is causing the issue? Again, even with no mods installed, clean save, I get the same result (loading a save that has had mods, but should run fine without all of them, in theory).
I've found that if I load into a save that's multiple in-game days old, I seem to be able to pass the crash point without issue. The only thing I did in between that point and where I'm at, is play a lot of the board game, do a tournament, and probably practice fights using the mod. The only thing I hadn't done before on this playthrough, was the tournament. But the issue doesn't happen immediately after doing the tournament anyway, so I'm not convinced that it's related.