Achievements app wont open - error code 0x87c40011

Reason being the Belle of the Ball achievement. Even if you finish it with 100% it can dock you points at the end so you need to see it pop before you proceed or your *** if you don't restart it.

:)

 

Xbox One error code: 0x87c4000f

I'm getting error 0x87c40011 when trying to open the achievements app. First time happening to me.

 

Xbox One Achievements app: error code 0x87c40011

I'm having the same issue. I get the error code 0x87c4000d when I try to compare achievements with friends and I get the error code 0x87c40011 when I try to open the achievement app ( which won't open ). It's definitely got nothing to do with Halo MCC as
I don't have it

 

App seems to be working now (for me anyways), but it's still not unlocking stuff yet :/

 

My biggest concern is that they'll do more harm than good when fixing the issue. I remember last year they released a patch that completely ruined my Xbox and I had to trade it in. I just hope this problem is resolved without any major side effects.

 

App works but still can't unlock anything yet ***

 

Achievements still not unlocking and challenges reset whilst playing shadow of mordor, all that grinding was in vain. Hope this issue gets sorted soon MS!

 

Hey, i am still having this problem with viewing/unlocking achievements since 2pm on Wednesday. Just letting you know.

 

I can't unlock achievement anymore...

 

Hey, everyone! I'm very sorry to see that you all are unable to access your Achievement App! This is still an ongoing issue that our investigating teams are working hard on resolving. Once I have word of that, this thread will be the first to know.

Remember that if you are no longer receiving this error, it can take up to 48 hours before your achievements pop.

For you all that are still receiving this error, do you see your achievements just fine on xbox.com or Smartglass? Is it happening only when you snap achievements in a particular game? Let me know, and we'll be able to pinpoint what is happening from there.


Again, thank you so much for your patience while we continue to work on getting this resolved!

 

No, two achievements related to Assassin's Creed Unity DLC (100% synchronization and COOP missions) are still locked on xbox.com and my achievement APP.

Obviously I completed (100%) that DLC

My achievement APP is working now (I unlocked 2 Youtube achievements this morning), unfortunately those AC achievements are still locked and my gamerscore hasn't yet been updated.

 

I've this problem (again after the issue occured 3 weeks ago) from yesterday in the afternoon. I was playing Assassin's Creed Unity Dead Kings dlc and i've reached an achievement but it dosen't pop-up. From that moment the app doesn't open and give me the
error mentioned above.

 

Yes, the same achievement of AL3X Zz doesn't unlock for me in ACU Dead Kings.

 

I have one achievment that says done unlocking for almost a day and i have one for liberate every outpost and on my progress tracker it says i have completed 100% of all outposts

 

My last two AC Unity achievements unlocked (one at a time) about 15 minutes ago: the first one unlocked 3-4 minutes before the second one.