MyLeague not saving?

[Zero One]

I have attempted to create my own fully customizable 36-team league for quite some time now, with all teams being fully edited from the logos to jerseys and custom arenas. But each time as I have attempted to do this, MyLeague doesn't save any progress or change being made within. I have tried verifying the game files from Steam but that didn't seem to fix the issue. Does it not work properly if there are way too many customs?
Also, I did not download anything from community creations. All logos/designs I used, I uploaded myself to the game. And I especially created all the jerseys and arenas myself as well.

[YahDracarys]

Same issue here. I located the save file. Guess it should be the problem caused by those customized-team file. And it can not be fixed.

[SHEIK YERBOUTI]

Whether you dowload them or uplaod them yourself, it's always the same ♥♥♥♥. it's been like that for me though several 2K's now, so I don't expect them to fix this anymore...