There's a player with two playmaker SA!!!!

I encounter a club with a player with two playmaker SA! Does it mean his playmaking ability is double??

Most likely a visual bug.

You can choose the second special ability from the special sponsor event. You can choose the same ability as the first one; that is the bug. I didn’t know what would happen if you would do so. I guess this manager tried it out and it seems that the same ability was assigned as second ability...