Custom venue broke my legacy save.

I've been playing with the new update, with mods/cc no problem since the 2nd when all of a sudden today I couldn't access my legacy save after playing all day.

I had just created a custom venue for my sims to visit in Windenburg, I saved and quit. When I tried to reload my save a few hours later it crashes upon that save loading. 

Things I've tried:

Renaming my old Sims 4 folder to generate a new one. That works fine. When I tried introducing my legacy save it does the same crashing thing.

I repaired the game, no luck.

And this was all WITHOUT mods/cc.

I tried doing a system restore; I was unsuccessful bc I don't have a previous restore point saved. 

I tried reverting the save file to a previous date but again ( I didn't have a previous version saved)

Please help me!