Roster management

[RogerW1148_XBL]

I have an Xbox one. I cannot move players up to MLB from AAA and so on. I’m
Currently playing a Franchise season and am stuck with the players I was started with. I can’t replace any player. If I
Try to “Manage Move” players I get “Xs” need to be corrected error. Fill in line ups or pitching slots and the error doesn’t go away. No help screen, no instructions but every position is filled. I’ve had 2K MLB and the old EA Sports MLB and this version of “The Show 21” makes it impossible to move players. Anybody know about this condition? Can find how to download new rosters updates either.