LE Map Packs Code Problem? (for 2 Xboxes)

So I got two copies of Halo 4, one LE the other SE.

I did so because my wife and I can no longer split-screen, lol.

But, I installed the ‘Specializations, Emblems, Map Pack’ code on our primary Xbox (like I do most DLC) and, unlike any other bit of DLC it didn’t unlock for her gamertag.

Now, I understand that Specializations don’t unlock until level 50, but why is the emblem not available to her? Is it intentionally locked out?

Also, does this mean that the War Games Map Packs are going to be locked out as well? I made sure to read the terms for the download before I confirmed, and like all DLC it’s supposed to be available to all gamertags on the first console, and only to me when I’m on Xbox Live on any others. This hasn’t posed an issue before.

Anyone else had this problem, or know a solution?