NBA 2K12 Problem..

i found a strange problem in 2k12.. we created players and teams in the create a player and create a team.. then when we assign the created players in the created teams.. the players are doubled.. it's really messed up.. when i assign my players to my created team it is ok, then when my brother assign his players to his team, my team messed up bad.. his players went to my team and my players went to his team.. and sometimes it is doubled.. i dont know what seems to be the problem.. do you guys know what is the problem and you have any solution for this? thanks..

We are having the exact same problem .. we have tried so many things, but just can't get the rosters to come out correctly.