Need for speed Most wanted 2012 xbox 360 broken achievement licensed to ill

Hello, there is an issue when trying to change the plate text for the licensed to ill achievement xbox 360. Although you can change the plate by pressing the A button, the text won't change by pressing the X button, whatever you write won't be saved so I guess it's a server issue. I talked to some other people who are trying to unlock the achievement just like me, they all have the same issue. One of them tried to change the text on the ps3 edition and it changed just fine, so it's an xbox 360 problem only.