This might sound stupid, but do you remember the "emails" for those accounts? I tried putting my account on my other computer, the OK button went gray then normal, as nothing happened until I slapped my old email on there. Strange but the way I describe it makes it sound like an unintentional security feature existed.
That is exactly what happened... but the problem is... I have tried creating a new character and still happens the same way... And no it doesn't show an error message...
YES I know I am not straight forward into detail... But I try XD
I put in the legit email but still nothing...