For some reason it seems as if I can no longer reassign units to other cities. I had no problem with this in the demo, but now nothing seems to happen when I do it. I don't know if something has changed, or I have suddenly forgotten something and am overlooking the obvious.
I click the unit, click the reassign button, and select the city and nothing happens -- in fact it doesn't really seem to select the city at all. I've tried it with hotkeys, I've tried both let and right clicking, etc. Sometimes I seem to get messages about not having enough trade route/market nodes, as if I was trying to create a route between cities. Any help on this appreciated.