I just purchased this game and I am still learning how to play. I attacked Denmark by way of invading the hex just south of Copenhagen (Falster Island I believe) with my 11th Infantry Division. The division than successfully attacked Copenhagen allowing me to capture it with another unit. But now my 11th is stuck on Falsterm out of supply and unable to move either by land or sea. The odd thing is that I can exchange places between it and the unit which is stationed in Copenhagen. But of course that just means a different trapped unit. Not a game killing bug by any means, but I thought you should know.
Oops, just realized that I am still using version 1.00. This bug has probably already been fixed. I could have sworn I had already updated.