I’ve done a couple of achievements offline but it hasn’t recognized them yet. Will it give me them because I’ve had it happen before and when I loaded the game up it gave them to me straight away but it’s been 5hours and I haven’t got those achievements.
people have had issues with doing achievements offline and then they don’t pop
you could always try doing them again
you just have to wait until they sync, it’s an xbox live issue and can take up to 72 hours or more…try clicking on the actual achievements as apparently they can make them pop quicker