Halo Wars Achievement Counter Problem!?

[bongodarak]

my xbox says i ave 41 out of 50 but the game says 40 out of 50

need:

Adjudicate the Arbiter
Detour the Great Journey
Mr. Punctual
Wall of Recognition
OMG BFF FTW
So Lonely at the Top
Officer on Deck
Running the Show
Ready for the Sequel
xbox.com and my xbox say 41 out of 50
but halo wars its self doesnt say which achivments just 40 out of 50. even though i have 1 more. i this happened to anyone else?
xbox.com and my xbox say 41 out of 50
but halo wars its self doesnt say which achivments just 40 out of 50. even though i have 1 more. this happened to anyone else?
how do i fix it.
i have all except stated

 

[lonewolfemc24]

which one does the game say you dont have... also check with you xbox.com account to see how many it says you have...