Items disappearing on lots.

Hello, I have some problems following the new update. Just to clarify, I don’t have mods or cc content . Everytime I leave my lot, even if I want to go in CAS, on another world or just close the game, when I come back all of my dors, lights, bathrooms objects disappear, I rebuild a few times but it’s the same.And it’s like that with all of my houses. It doesn’t let me save to the gallery or upload on the gallery, it always says the server has errors. I tried everything, repair the game, reinstall, nothing works.