Achievements not unlocking

Killer Ryno

New member
Hey so, i just got gears of war 3, and the achievements arent unlocking. I know I should be getting them but im not, ALSO when I go to look at the list of achievements nothing comes up, it just says "here is where you achievements would be"

Does anyone know how to fix this? has it ever happened to you on gears or any other game? Any help would be highly appreciated due to the fact that this is infuriating me beyond belief!
 
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