1) this forum clear states FIFA 23 only

2) make sure you got the create a club I'd correct. Otherwise ask the mod makers, assuming you load with FIFA editor tool etc

I made the mod myself

Then there's any number of reasons it didn't work

It was working fine until today

1) There wasn't a FIFA 22 forum so I put it here for help
2) I followed a tutorial and did everything they said

Based just on "it's not working" I have no idea

It's this

@251027110947323904 do you know why?

I don't know the methodology you self made mod works, but I do know that squad files and career save files are isolated from each other, edits done to one don't effect the other. So I would guess you edited the assets in the squad file not the career mode save

I did edit the career file, but I think now it works, every time I override the save file it will revert back to the old kits so I just need to change the file every time

I never had that issue when I edited kits a while back but if you found a solution that works for you, that's good