As of the last update, trying to import schedules into Madden 20 franchises will cause crashes, regardless of when it happens. This is, I think, because the last version also works with M21, and they handle schedules differently (since there's an extra wildcard game, etc).
As of the last update, trying to import schedules into Madden 20 franchises will cause crashes, regardless of when it happens. This is, I think, because the last version also works with M21, and they handle schedules differently (since there's an extra wildcard game, etc).