Cheers this works great, also If you don't want to redo all the areas I think you only need to delete the area that you can't access:
Int_02 - Top Floor with the clerics
Int_01 - Main floor where Raedric is.
Int_03 - Dungeon
Ext - Outside
nice!
Thanks to everyone in this quote, I was able to finish the castle and continue my game.
Now let's hope an official patch comes out soon, because this is indeed a nasty one!