After unlocking Kleese, the unlock requirement tooltips for all other characters seems to go away. Looking at the Command screen, it shows everyone unlocked. On character select screen, only the ones you’ve actually unlocked show up.
Had the same issue so I just googled how to unlock the rest and did it asap to stop being confused. Hope they fix for new players
Had the same issue. No fix yet. Confusing as hell.
A friend of mine is having the same issue now, and only has silver on three missions. So, it’s probably not just from getting Kleese.
I have the same issue lucky it doesn’t prevent you from unlocking them.