halo reach beta-shirt

Hi everyone, my English is not so good. But I will try it.

I’ve a problem with the Archivement/Award for the “Halo Reach Beta-Shirt”.
I’ve played the Beta in 2010, but I didn’t get the Reach Beta-Shirt! :frowning:
I start and check Halo Waypoint today… but no unlock for the Reach Beta-Shirt…
The other Clothes from ODST were unlocked.

Is there a bug?
I’ve the Reach-Beta Game on my HDD. I don’t delete it anytime.

Can someone help me?

The account you are using, is it the one you used for the Reach beta?

Yes, that’s the account I used for the Reach Beta.