This doesn't happen a lot but thought I should report it in case others have had it too. In Businesses and Hobbies every so often a customer potters about in the residential parts of the building. They stick around for a while but eventually leave (can't send them home).
I have checked the outlines and they shouldn't be able to enter the upstairs (even made the stairwell residential). They haven't been invited by a sim either. I can't see any pattern in when they appear and as it's not a huge issue I don't always notice it.
It's not the most annoying thing ever but they do eat my food and use my computer (rude).
PS5 so no cc/mods
Edit By Crinrict: Added Tag to Title, Adjusted Title
