Ideas
I'm not sure, but the "Gnomes" Lot trait seems to/was spawn(ing) gnomes on the grounds of the lot...not sure if it's related, but it is another possible cause (other than ailments/enchanting), usually those gnomes are good to me, but seems they replaced the base-game (or earlier pack) effect with a unique one for EBN.
Remember: Lot Traits are tied to the lot, not the sim, and they effect the entire household, it can easily go missed if your playing with a lot of Gallery Stuff (because Gnomes are a pretty "good" trait for most builders)
LeissaMyst yes I can confirm that about the Gnomes lot trait (on Xbox Series X with all content). I just had to remove it from a public lot. I add it to retail and public lots with breakable things. In my Arts Centre with crafting, fabrication and recycling facilities the gnomes are no longer working quietly overnight to fix things and are there large as life being disruptive instead. They were dropping seed packets and causing trouble...and fires too! Guess I will be removing that trait from my lots.