This has also been happening to me since 2 patches ago - no mods. It started after my sims graduated university and went back to the main world. At first I could narrow it down to certain actions - like cooking a meal or reading. So I’d clear all their actions upon opening the game back up and usually it wouldn’t crash again. But a little later something new seemed to trigger the crash. Now I’m at the point where clearing their actions doesn’t help. The game crashes within 30 seconds of getting the household loaded.
