Everything deletes in all inventorys

When I load into my home lot my inventory is usually empty, as well as my refrigerator, book shelves, and any type of inventory really. (Knowing I had stuff in my fridge and bookshelf before). If my sim leaves the lot, it deletes everything again in my fridge, book shelf, inventory etc. 

I've tried starting a new save and coming back later to the game, it did it. All of my saves are like this now, it makes it impossible to play. My college sims homework and university work disappears every time I reload into the game. My child sims homework also get deleted. My inventory cant be trusted.

Also homework is glitched with this issue. Any time I buy new homework for my sims to do, they stand at the bookcase trying to complete the task but stand there for hours ive tried resetting the bookcase, the sims, tried on different saves as well. 

On PC game, fully updated as of 11/ 25/ 25. I removed all cc and mods and retried everything I listed above and still had the problems.