HELP! Stuck in Castle Morne (Moarne Moongrave)

[Fræs]

Cannot travel to a site of grace right now - Hardstuck after killing Leonine the Bisbegotten
So it would seem I have ruined my 90+ hrs save, by finishing Castle of Morne and not being able to fast travel out. There is no exit from this place. When I try to fast travel the promt says: "Cannot travel to a site of grace right now".

I've tried everything stated in various tips and help posts.

Including:

- Restarting the game
- Dying and respawning
- Spent all my runes
- Quit game and loading save
- Removed all items and gear
- Pass time
- Quit game and verifying game integrity
- Cleared every enemy in the area
- Started New Game with different character
- Tried invading and winning, tried invading and losing
- Started game in offline mode


If anyone can help me out I'd be tremendeously appreciative.

K, thx, bb