This is only happening in one household: Every morning a new sim appears in Portrait Panel and is found just outside the lot parameters. The Sim can not be selected and is not a member of another inactive household. When checking status of the sim detail shows as a regular household member. I can TA the sim and another does not appear until I restart the game. I've watched to see if OW will clean it out and it does not. Does the script error I uploaded give any indication why this is happening?

I forgot to mention this: I was also seeing this notice: "It's time to collect rent from the roommates sharing your house". The money is paid and deducted from the regular household account. What could I have unwittingly set to cause this? This only happens in one household/.

The ScriptError says that the Resort Service pool went Out of Sync, not so sure what could be causing this and if it's related to the inactive Sim trying to be added to the household as Roommate.

From what you described in both messages, this sounds like Roommate services being activated on that household. Usual trigger is that around 9 am a Sim will be send to your home and added in the Portait Panel. Check with your Sims Phone> Real Estate & Travel Services> Roommate Services> if its activated.

As for collecting rent, is your lot zoned as an apartment? Or are you sure you still are the owner of that Lot (Household Maptag> MC> Ownership).

That was it J4Ks. RM Services was enabled...I must have hit to enable in error at some point (probably instead of Travel). I've never played with roommates so did not even think of where to look. What really threw me off was this is one of my legacy households, there is no Resort in my town, and Resort workers is set to 0 in Register. In any event what you suggested has solved the problem. Thanks so much