Just encountered this in my own game. I am in Act 2 trying to rest before finishing the Gauntlet of Shar. When I rest, Raphael comes to talk Astarion regarding the marks on his back. When that is done, the Owl Bear cub and the dog have a bad dream. I talk to them and then go back to bed. The long rest is then interrupted and from there the game is stuck. Any character not in my party has disappeared from camp and I can't select anything or anyone. None of the solutions I have read online seem to work for me. Has there been any other options presented since the last time this was brought up?