Check pinned comment for the fix.
Hey Charles! I have a fix. I had the same problem. I made a new save file on creative and made sure I was in front of a customization machine before redeeming the content (You always need to redeem the content again for every new save file) and the X.O. Suit visor successfully appeared as a number 12 helmet on my creative save. Once I loaded back to my original normal save (the one I had trouble with) I found it there finally visible. It seems that it pushed away the bug once successfully unlocked and viable on another save. You don’t need to make a new file or anything like that. Hope this helps you!
Share this around, thanks for the video and tip!