Regal residence lot trait glitch

I don’t usually complain about glitches/bugs because they tend to be workable but gosh this bug is literally ruining my game. None of my sims have this lot trait - not even the sims named in the notification. My sims wife, who is the daughter of Victor Fang, “celebrates” every single time this notification comes up which is approximately every real life minute.

I have no mods or CCs. My sim went to university at Britchester and stayed in a university home that had the lot trait but it’s not him that gets the notification so I don’t see a correlation? 

please help.