I was playing the other day, just passed the Atlas Falls level, then during the cut scene for the next level, Into The Deep, my screen went totally black. After a few seconds, a box popped up saying simply "An Error Has Occurred." After that, I was taken back to the main title screen. I selected campaign, and then continue, and it started me back at the beginning of Atlas Falls. I didn't feel like playing again then, but today I started it up and finished the rest of the levels, starting at Atlas Falls, where my last save was at. No more achievements after that point. I was signed in with my same account/gamer tag, and I was connected to XBL the entire time. Is this a known glitch, and will the achievements become unlocked at some point with a patch? I haven't played enough MP to see if any other achievements are able to be unlocked. Not a huge deal, but c'mon, MS!