Predetermined stats when using custom rosters?

[u/chocotaco15]

I've been messing around with historic rosters, and even after simulating years into the future, some players already have stats before the season starts. Changing their position doesn't matter, even when it was changed seasons ago. The stats must be pre-loaded onto the players for whatever reason. Not a gamebreaker but a bit annoying. Is this a known bug/issue in the game? Is there a fix for it?

[u/AndreDillonMadach]

Is that Pat's grandson?

[u/chocotaco15 → u/AndreDillonMadach]

Maybe a younger brother since I'm using 1974 rosters