Ideas
I've got this happening too on Xbox Series X with all content installed. It's never happened before last week.
My Sim is a Freegan forager and is spending a lot of time in Moonwood Mill, it's usually really quiet. I only have the heads of the Moonwood Collective and the Wildfangs, one resident and Greg. I took out the bar. Since last week I'm seeing the Moonwood Collective and the Wildfangs HQs full of mostly new Townies. Even if the head of the Wildfangs is transformed they are playing around the fire and socialising as if there isn't a Werewolf on the lot. This has never happened before. It's always just her on her own, now it's a trailer party every night.
On console, excessive Townies impact performance and cause crashing and lagging. So I have to delete these after every session or I'll get even more issues with my console game. I can't remember if I noticed this before the patch on Thursday and adding Enchanted by Nature or not.