[Sebastian Palkowski]

Originally Posted by KorbenDallasMultipass

It just occurred to me that I may have a good hint as to what is happening. I remember editing a player and changing his nationality to test something but he kept playing for his old country in international games. It would appear there is an other flag somewhere that is not updated by the editor. The result is that created players have no country and edited players keep their old country.

That nails it.