Got the same issue. I tried loading Black ops 2 in my 360 and then starting Ghost on my Xbox One to see if it would work but no success. I'm prestige master in Black Ops 2 so I should have both background and the basic one for MW3 but they are still locked. I do have my Founder patch and background though.
Interesting. I have neither my Founder or MW3 stuff. It seemingly gives people there stuff at random, or by luck.
same here i have I upgraded to ps4, i was founder, max prestige mw3, and max black ops 2, and i didn't get any unlocks. this needs to be fixed.
I have the same issue. I have prestiged several times in both MW3 and BO2, but it does not show in Ghosts or the App. I do however have my founders patch and background.