Any of you guys notice this happening to any games you have got all achievements for? I was looking through my 360 last night & noticed a bunch of achievements have complete gone that I unlocked long time ago. I do not play online ever. Particularly I noticed a game I got all achievements for EDF 2017 and now it shows I hadn't bet the game on hardest for that achievement. Hell EDF 2017 insect Armageddon all achievements have been wiped out. Only thing it shows is the game had been played that's it. It doesn't really matter I just don't understand how they could completely vanish off the hard drive.