This exact issue is happening to my club. The game is about to begin and and we get error, where we all report and send the video. EA should have all the context they need for this issue since this seems to be happening to a lot more than just my club. The video I'm sending should show it clearly.
PSN ID/Xbox gamertag of each player
Is anyone changing the position they enter with?
No
Have you tried different combinations of players?
We've tried to play with and without each other, doesn't matter.
Does anyone have any custom rosters saved?
No.