Xbox GamerTag: Reb7rtHLo3us, Playing Gear of War on Xbox One, achievement unlocking problem

§ Xbox GamerTag;

§ Achievement name: Completed Act 5 on Casual, Mercenary, For the Fallen, Completed Act 4 on Casual

§ Game title: Gear of War (Xbox 360)

§ Platform: Xbox One S

§ Date & time I completed the achievement: 2017/11/28

Hi, I unlocked this four achievements in 2017/11/28. but when I check this four achievements on my Xbox One S or iOS Xbox App. The unlocking date is non-existented. When I use IE to check it in "account.xbox.com" ,the date is 1753/1/1. At that day , after I
unlocking this achievements, I also played another Xbox 360 game on my One S (Gear of War 2) and unlocked a achievement, its unlocking date is correct.

Please, how can I fix this problem?

:)

 

完成且无法获得重铸核心（recore）成就

Hey there NeO lii,

Which achievements are you having a problem with unlocking? Are you playing on Xbox One or on a Windows 10 PC? Please try this guide for help with Achievement problems.

 

Broken Achievements

DisclosedBarrel,

is any of your achievements are stuck in the done unlocking stage?

you're not alone, many xbox live users have faced this problem. I say keep playing these games that have achievements stuck in unlocking stage. before you know it, you will get the notification saying you got the achievement.

I do suggest on doing the achievement again. if its for completing the campaign then do it again.

Have a great one

 

Hi!

Have you already tried to follow these
instructions?

 

Yes, I am. And at last I go to this webset: Survey. creat a report and upload twice in different month. But until now, the problem still exist. last year, I asked
the Support Center（Microsoft Honkong）,and they said this is a bug and need to fix, but only I can do is just wait. Now half year past, the problem is still.