@Rflong7 I will check the routing paint in that area again and make sure it's solid. I get at least one NPC stuck there every sim day, but so far, never the same one twice.
The woman in the other situation is a resident. And she really can't move, because I used NRaas Master Controller to send her home, and she just stood there fussing over not being able to go. Later, I found another sim stuck between barstools at the dive bar, who couldn't move from there. He should have been able to, but there was a sim playing an instrument near him, and he may have been blocking the other sim's route, even though he wasn't right in front of him.
Mostly it's just that one problem spot giving most of the stuck sims messages.
Thank you for your help.