Anniversary terminal codes

So I recently tried to enter the codes in the classified section of Halo Waypoint and went to enter the codes for the Halo: Anniversary terminals. Upon entering the code I was told that I didn’t meet the requirements to unlock the content.

I figured it was referring to me not unlocking the terminals. But this is not the case; I have unlocked all of them and have the achievement to prove it.

Is there a fix to this issue?

As I no longer have the game and cannot access the terminals again.

I’m actually having this same problem as I type this. I’ve browsed the web trying to find a solution… but I’m having no such luck :frowning: