Locked Xbox Achievements in Assassin's Creed 3 Remastered (But Unlocked in Ubisoft's Uplay)

Just finished up with ACL and figured I would try and load up AC3 again to see if I could try and try try for Jager Bomb. Soon as game loadup up to the manor:

The Sum of Truth

No Good Deed Goes Unpunished

Perfectionist

Fin

Jager Bomb

all unlocked!

I was playing Ubisoft's Assassin's Creed 3: remaster and painstaking getting 100% synchronization in all the mail sequences.

I finally ended up playing though sequences 12 beating the game however no achievements unlocked passed sequence 11:

The Sum of Truth

No Good Deed Goes Unpunished

Perfectionist

I figured it was a live update glitch and might sync in time, but after 2 week now those achievements are still locked with a few other that I know I met the requirements for including:

Fin

Jager Bomb (killed at least 15 in the replay attempt trying for this achievement but nothing unlocked)

The odd thing is I know I met the requirements for at least for the 'The Sum of Truth' achievement for completing sequence 12 as it is unlocked in my Uplay account. Bit disappointing as I would not have got tough the painstaking effort to get 100% in each
of the main sequences.

Did anyone else experience these types of "Schrodinger' Achievements where they can be locked in one system and unlocked in another?

Avez vous essayer de contacter Microsoft.com au téléphone pour regler se problème directement ?

Had this so many times with other games.. can be really frustrating.

Thanks for the reply, but I also was hoping it might sync after 72 hours. However I beat the game on Dec 28 and over a week later I still have those achievements stuck unlocked.

It can take longer than 72 hours. In AC Syndicate one took like 2 weeks to unlock. I just turned it on one day and it popped. That happens from time to time especially with UBISOFT games. They always unlock eventually though.

Infelizmente não tem mesmo muito oque fazer, já vi relatos de pessoas com conquistas travadas a mais de anos..

~Fox