Df Version 50.02
Loaded in day 1 steam release

Everything working fine until I found !FUN!....

an angel vault in my embark, at least I think it was. Anyway whatever was guarding it dodged into some lava and dropped some twinkling gear. Fort ran smoothly for 2-3 in game months until I tapped open the lava pocket to access the items. They have no sprites associated with them. Now the game is crashing. Error log has nothing related to the crashing apart from problems with cats/ humans having pathing issues. Loading from a previous save allows the game to run smoothly without an crashing issues.

I disabled all labors, workshop orders, and manager orders. There is an emerald that is perpetually on fire ( was not an issue before). I have updated the version to have it work with my ultra wide resolution. Any help would be greatly appreciated! Save is in the listing.