PS4, no mods. Updated to patch 2.02 as of Oct 31st.
My sim has the stuck bored moodlet from the lot too...but he's been dropped into a completely new save and into a house without it. His previous house in another save had it, but the current one does not have it and never has. So this bug transfers with sims across save files if the sim has previously lived in a house with the lot challenge.
Having this exact same issue. It's not game-breaking or anything, but it is kind of irritating. I'm going to see if a Save As does anything to remove the effects following my household even after they've moved to a new lot.
Okay, after digging in a bit, I found a hidden trait on my sims that were active when I added the lot trait from the event, and it does seem to remain attached even after that household has been moved to a different lot. The trait is r3event_thrillseeker. I removed that using cheats, and the buff finally stopped re-applying.
It seems to be a little bit like how once a sim unlocks all their discovery traits, even if you use a retraiting potion to remove them, a hidden trait remains which prevents new discovery traits until you manually remove the hidden trait yourself.
