Player not recognizing that he is playing his preferred position

This error in your game has profound effects on a coach's career. A broken promise will carry for the rest of your career, which could affect getting jobs or transferring players who won't trust you. In the short term, this player is a star player and playing well for my team. This can crash his morale which can have a ripple effect through the club (Player happiness has been horrendous in FM24), and the team will start playing poorly.

This is a management game so playing a player in a position is the most basic fundamental thing in this game. This isn't a bug, it is a massive flaw.

Update, the game recognizes it now. It only took 14 matches for him to realize he was playing in the position he was promised.

Hello, we did play forward on your save and the player passed the promise and was happy but it seems you beat me to it.

Looking at the initial save, you made the promise on 3/1, and then kept playing him as a standard central defender till 8/3 so he's only played 50% of possible games in the role you promised. So that's why he wasn't happy.

You then changed that and the promise does not fail in the end.