No achievement for Rank

Games Other Halo
1

I got Halo 4 for christmas and basically i hit SR-5 and Got my achievement for that rank but when i hit SR-20 I got no Acheivement for that rank and way to fix this?

2

i just checked your stats.

that is very weird

3

What is the achievement called?

4

“Movin’ On Up” is the SR-20 Acheivement

5

It doenst Matter guys i got it when it hit Level SR-22