Yesterday I attempted to enter the BoS bunker (thats where i call home) and while loading into the bunker, the screen turned black. So i proceeded to reload my last save file and ever since then when I try to save the file it will freeze, or occasionally it will freeze when loading into another area. I have tried saving as a new save and it up to this point i an save as a new save, but cant overwrite without it freezing. So i figured it was something with my Xbox, so i cleared the cache. Still having the same problem. I then tried another one of my save files from a separate character and its working fine, but that one save file is still having issues. Would be an odd corruption of the file since i can load and play, but just cant save. Any help would be great. I have the Dead Money expansion, I beat it on another character and never had problems afterwards like I am with this character.

Got the same issue myself a few days ago, using the PC version though.
Strange thing is, I've never had this problem before. And I've invested 60+ hours into the game. Without any save corruption.