Ideas
When I go to build mode while playing a character on a lot and try to open household inventory, the game completely crashes. My Sim is using the Handiness skill and selling the bath tubs through build mode. When I go to open household inventory the first time and sell items, it’s fine. But if I try to open it again it completely crashes my game, forcing a complete restart. Not to mention, it takes about three reloads to load my save data. This is on an Xbox One with the majority of the packs installed.
(I posted this comment on another thread regarding crashing when loading the household inventory, but it's relevant here too.)
This has been happening to me as well lately on PS5. My game has also been crashing a LOT when trying to save - not sure if it's related or not but I guess it might be. It's so frustrating and I'm so close to just taking a break from the game.