This thread explains for PC, Xbox One and PS4 how to solve
Having a wrong star card being stuck on some other class or hero. This bug makes it impossible to unequip this star card.
You're not the only one and it can probably be fixed with the steps below. Keep in mind that when deleting local files (on your PC or console) will erase singleplayer progression, such as the campaign. However, the provided solutions do not affect your number of credits or skins or progression.
You can manage your data for individual games through My games & apps on your Home screen. Please follow these steps:
Hopefully this summary can solve your issue. If you still encounter the bug, please post down below!
Solved! Go to Solution.
Can anyone tell me if this fix removes any PS4 trophies or career milestones, I’m ok with redoing the campaign