Problems too many problems

[wicked2002]

so im trying to create my own custom rosters. using Madden Roster Editor making adjustments 1 team at a time and testing regularly. But always after I've adjusted 5-10 teams and attempt to sim the season it starts to pause the sim and have to start to Manuel sim each game. and when the season is over the Team screen where you resign coaches has no coaches and the game crashes if you try anything. but only does this on my adjusted rosters not anything from all the users here any ideas?

[Theov]

How did you start? From a well functioning roster?
Without more details or, eh, the roster posted it could be anything from roster size, league setup, scheduling, salary cap, coaches, available free agents... anything.