Campaign progress reset.

When I logged into Halo 4 today all of my loadouts, armor customizations, and emblem had been reset. I had to redownload my preorder dlc for it to show up. The more concerning issue is that my campaign progress has been lost. I had completed it on Heroic and was working my way through it on Legendary and now it says I have never started campaign when I go to the menu for campaign. Has this happened to anyone else?