Madden 23 Custom Class causes corruption

Lost 4 franchises in Madden 22, and 1 so far in 23.  Very frustrating to lose HOURS of time, and trying all you can to avoid this terrible problem, just to be left with no accessible save to your organization.  Guess it was my fault for purchasing?  I hoped this problem would've been addressed by now, as it's been being reported and ignored by EA, since at least Madden 21...