Kron [TEST]
The Ghosts Of Fort Salma
You can only remove Story Episodes from the UI by completing them.
Good luck.
Lovely, no reason to replay any personal story without having nagware messages on the top of my screen – since I had already beaten this personal story in the past. But seriously putting back up there for the replay is “kitten”.
Kron [TEST]
If you mean you have played this episode on this character, and it is still showing, then that would be a bug.
If you mean you have played this episode on a different character, then for this character, the game is WAI.
Good luck.