Issues with map pass

See i have bought halo 4 limited edition and have activated the war games map pass and avatar item. Just now i turned level 24 in the MP and all my helmets, specializations,Skins and emblems are gone. I do not know what happend but all the things i unlocked from the war games map pass have gone. Please Reply immediatiely.
InTenSity.

Turn off xbox and turn it back on and play halo 4 and BAM! they will be back!

Also there is no point signing off your thread with your username, just saying.