I was checking my custom database and I think I may have found the issue.
I think the problem was I tried to create a new agreement.
I don’t have a non-custom file because I was still playing a save file I had from last year
I’m doing a save in denmark with FC Nordsjaelland and I have encountered this problem where regens are getting called up to completely random national teams. I have only added some players through the pre game editor.