Quantum Break Achievement (Media Baron) not unlocking.

If an achievement is stuck at 100% you've unlocked it but it still hasn't synced with Xbox yet... usually this happens instantly unless something occurs. Most people will tell you to hard reset your Xbox by holding down the power button on the console till
it shuts down, wait 30 seconds, then start it up. Some will tell you to wait 24-72 hours for it to appear. Others will tell you to recover your gamertag or even to try to re-achieve the achievement. Some of these work other times you just gotta be patient
and wait until it unlocks...sometimes without any notification, you'll just sign in and it'll be unlocked. Sometimes it'll just pop while playing something else.

Hey coasterflo!

Sorry to hear that you're experiencing achievement issues. Have you gone through the troubleshooting article that outlines Problems with Xbox One Achievements and
Challenges? Additionally, please do check the Achievement Unlocking thread and complete the survey—your information will be recorded and will be passed along to the proper teams to take
a look at it.

Let us know if you're still experiencing problems!

Yes, thats correct. I had 1 achievement on Wolfenstein which showed Unlocking (this one doesnt...only shows that is on 100%)...but i had to wait maybe 4-5 months and it unlocked suddenly... I tried some of these suggestions...none worked. So i guess we have
to wait...

This is not a unique issue. This achievement is broken. According to trueachievements.com the last eight people who are tracked and unlocked this achievement did so on October 8th 2016. Since then no one has unlocked this and there have been many complaints
of people completing the requirement. All of the links and advice given do not address the problem. This is not achievable.

I have exactly same issue. Just finished game and this one is stuck at 100%...last achievement i do not have.