So I did check the lot challenge, no curses. The fires start around my Sim mostly. She has a younger son and sometimes the fires start next to him which makes me panic.
I thought maybe it was her fear of fire? They've started spontaneously while she was asleep in bed, I'm almost terrified to just let her sleep in her own bed now.
@MrSpooks32 Fear of fire does make your Sim more likely to cause fires - but I would have expected that to be during interactions that might cause fire anyway (lighting the fireplace, cooking, laundry, etc) and not while they're sleeping. Does the son have fear of fire now too?
When the fires do start whlile she's asleep, where does the fire start? Right by her on the bed, or somewhere else in the room? Do you have any fireplaces in the build?
Edit: What about For Rent? Have you had the cursed book event from For Rent on the lot previously, or even on a different lot but while playing the same household?
