I also have the same issue, everyone is walking around instead of sitting and waiting for their orders to be delivered. Happens with active sims, NPCs; no difference. There are way too many other bugs with Dine Out currently, definitely no fun at all…
I agree r dine out it’s a nightmare to use at moment. Did anyone come up with workaround to get them to at least relax and stay at table during meal?
My sims sit down most of the time, but can easily get up and talk to others. When there's finally food, the sim that joined my sim for dinner won't actually eat their food, not even the drink. <_> It's so disappointing.
