Yeah,it happened to me too.Trying to load my save and the dlc dependent stuff pops up and cant finish loading since my storage device isnt available anymore..Yeah right. I had 24 hours spent on that save,and im telling you,i dont really feel like starting over..

There are thousands of 360 players just like you who haven't realized that this glitch affects all of us. Now that it has happened to you, welcome. Please post about it here every day until they fix it. That's what I'm doing.