I have been able to get Split Screen logon of a second person to work only one time and never have been able to get it to work again. I ensured I had each player logged on the Xbox console, launched the game as one of the users, then started Split Screen. The menu button, as per the screen notes, on the controller to log the second person in does nothing (tried both). What am I doing wrong? Also, I see a glowing controller icon in the top right of the screen with a number in it. What does that mean and if has to do with which controller to use, how do I know what number is assigned to what controller?
Xbox One S
Forza Motorsport 7