Slitherine

Getting this message citing illegal move on reinforcement on opponent’s turn. What to do???

any saves or more information, not a lot to go on atm, like windows etc?

Windows 7. No saves that I know of. Not an option as far as I can tell. What else do you need to know?

I think I know what the problem is. When playing the Sovjets it is possible to place new units illegally. You place one unit on a certain reinforcement place, then hit undo. After that it is possible to place both units on the same place. However, when you do this, the multiplayer game will give an errond.

Is there any way to let my opponent know what has happened?