This turn in one of my games I captured a new city on the front lines.
I have a city that has 4 units being vectored to it behind that one. So I went to the re-vector menu and attempted to move all 4 vectors to my new city. To my surprise I got a message saying I can't re-vector until I select production in my city. What I didn't realize is I pillaged the city and forgot to buy new production. So once I bought production I could re-vector the units.
I don't think any game id is needed here since any pillaged city should be able to re-produce this one.
KGB