I wish to say that I was having a similar problem, couldn't fast travel there, couldn't enter any of the buildings, it was a ctd FEST! However I ignored as it was early days in the game and I didn't NEED to be there. Then eventually one of my brothers disabled saving after quick-travelling for some reason, and I could travel there. Disable all "save-after" options in the menu and it might be fixed for you. It was for me, though I can't save in a mile wide radius of solitude at ALL. I HOPE this helps someone in the future. Hello future person. Edit: It appears after doing this that I'm unable to save anywhere at all and the bug becomes a world wide thing. Dammit.