Microsoft is reporting via the @xboxsupport twitter feed that the issue has been rectified. If you are continuing to run into problems with your gamerscore, they are instructing you to re-download your profile (instructions here).
Original story below:
Many Xbox 360 users have had their gamerscores and games lists erased.
Microsoft’s @xboxsupport Twitter account is being flooded with tweets complaining about the issue, and has responded: “we’re aware of some of the gamer score issues at this time, and we’re looking into it. Thanks so much for your patience!”
The Xbox support Twitter has asked gamers to try signing out of their profile, and back in to see if this resolves the solution. Some Twitter users are reporting a drop in their gamerscores, rather than a total wipe.
Has this happened to you? Let us know your experience in the comments below.