Not sure if this is related, but during winter season I was playing a doctor with the assignment to deliver a baby, and Bella Goth arrived in labor. As soon as her baby was born, Bella went outside to shovel snow, leaving my doctor stuck at the operating table, with no ability to cancel the action. After a few hours of Bella shoveling snow in the freezing cold in her hospital gown, I figured she wasn't coming back to get her newborn, and used the resetSim cheat to get my Sim unstuck. The game gave me a message that "Wayne" was starving and would be taken away soon, so I fed him and changed his diaper. Though she eventually stopped shoveling snow and came inside to watch TV, Bella didn't return to see her baby until shortly before the end of my work shift...
I'm on macOS 10.13.6 (High Sierra), no mods or cc, all packs except for Laundry and My First Pet.
I me too-ed with a general version of this problem. It happens to me everywhere. I've had families eating dinner get up en masse to shovel some spot across the map. I've had sims wake up in the middle of the night to do the same thing. Sims on dates, ditto. It's happened with bartenders and food booth workers too.
I don't know if it's a prioritization issue or what, but something is definitely screwy.
