Unable to use transfered reserve driver in fp1

[S8xxx]

Hey,
i added several reserve drivers in my create a team save.
First 2 armstrong and vips. Had to unretire them and gave them superlicence. Fired my 2 reserves via deleting contract in game.
Cant use a driver in fp1. Button does nothing. No drivers where shown.
Than i tried adding actual drivers.
Enzo firtipaldi and sebastian montoya and david schumacher.
Cant choose any of them in fp1 to.
Tried to experiment with superlicence. Didn't help.
2nd thing i recognized.
After addiding the new drivers, my reserve only shows the last 3 i added.
i can find armstrong and vips via scouting. They are still shown as in my team.

[S8xxx]

Ok, here
If i go back to an older save.
Vips and armstrong are added.
Caterina Martini and fracois guillot the initial random reserves are still in.
Now i can choose any of them in fp1.
If i fire catarina i cant choose a reserve driver in fp1.
If i fire gulliot, i can choose only Caterina.
Both drivers have no licence in db editor and i changed their salery in db editor at some point if that matters

[S8xxx]

I think its a bug in the game.
If i hire 2 drivers via immediate offer its all good as long i dont fire the 2 random reserves