Is the game not taking into account multi-position, multi-side players correctly?

My current Analysis screen lists a player as having -3 “x” modifier when my team has the ball.

I can’t figure out why though. The player’s traits, his position, and both the team’s class are all in alignment.

He is playing at position LC D/+1 . We’re playing a team with the same Class.

Position: DA [swap]
Side: LC

His traits:
Pressure handling: Reasonable
Plays better against teams with a class worse than his team (+3)
Plays worse when only playing in the second half (-1)

I’ve moved him around, but the same problem occurs.

The issue is you are telling him to “move forward” when your team has the ball. That means he will go from D LC +1 to M LC – 1, out of position, hence the – 3 penalty. I guess the “analysis” tab will help demystify what those player instructions mean :-)