[OPEN] Effect from Scare Seeker lot challenge doesn't go away after removing it

I'm having this too. I got tired of random sims coming for a scare on my lot so I removed the lot trait. 
Now I get the specific ghostly bored moodlet sometimes when I load into the game. The sim wasn't even doing anything. Also when I move them to another lot the moodlet just comes up. while the new lot never had the trait or any other. 
I've repaired the game and refreshed the sims 4 documents file. Still there.