Achievements

I bought a digital copy of Horizon last year and have been waiting for it to hit BC. It finally has and I am crazy happy. Been playing it for a week now and having a blast. I do have one problem. After the first day achievements stopped unlocking. I am not sure what the problem is. Has anyone else experienced this problem and hopefully found a solution.

Note: I went to @xboxsupport and their solution was basically to to try and get the achievement again which is hard when the achievement is reach leave XX when I am now at level MM you know.