I am doing a 32 team test CFM and this was a major problem last year until I understood the fix.
This year I have not had this issue at all. However all settings are set on manual right now for every team as I am testing various teams etc.
Once I start my proper 32 team CFM everything will be set to auto except in season resign (for 31 teams).
The fix last year was simple. If your going to play any other game in your 32 team CFM other than your team. Make sure your go to each teams main page and set them as ready to advance after you simulate their game prep.
Then select the team you want to play as in that match-up and play. Also use multiple save points in 32 team CFM to make sure if you get the lock up you can go back and start again.
I will report back if I see this bug again. Thus far I have not.
PS4 offline 32 team CFM.