Hy, I’m having some troubles with card issues. It isn’t shown in the formation screen, only in the turn of the game. Could it be some bug?

The formation screen is supposed to show cards for the next match. So if the next match is a friendly for instance you’ll see no cards at all on this screen. You can see the card status of your players per competition in the player cards screen. We may add something to the formations screen in the future to allow you visualize the status for different competitions.