Halo MCC Achievement Stuck At "Done! Unlocking"

I have a Halo MCC achievements that have been stuck at unlocking for around 5 months.  The achievement is Sightseeing.  I have tried all the solutions listed here multiple times with no success:  http://support.xbox.com/en-US/xbox-one/games/troubleshoot-achievements-challenges

Are there any other options to get this achievement to unlock.  Its really bothering me that its taking up one of the six closest achievement slots. 


Question Info

Last updated July 4, 2018 Views 4 Applies to:


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