Hi,
after some research, this is a known very (very) rare bug we don't know how to reproduce.
The GUI is mostly incorrect on your side, and you can't see the unit which has the problem.
The other player should not have the problem and plays normally.
In case you have it again, please send me your log files (lua.log, lobbymanager.log), you can find them on "My Documents/DogsOfWar" folder.
Any information about this is very welcome and sorry for the inconvenience.