I'll leave this game alone until a resolution is found, not willing to replay the hours losts to this naff bug.
Sometimes, if you are caught in the middle of a bug, no patch can do anything about it. You've triggered it and now it's in your save file. There's nothing you can do but go back to a previous save or start a new game. Always make plenty of permanent saves.. Don't rely on quicksaves and autosaves.
This.
Waiting for a 'fix' for a broken save is pointless.
Save sufficiently.