Achievement can not unlock. progress on xbox app is stuck

I started play forza 6 apex a few of months ago. Already completed all tours series ,got 81 medals. but only unlock the ‘Welcome to Forza Motorsport’ achivement . the others achivements and the progress on xbox app is stuck, did not update for a long time. how should I do ?

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See post # 69

Thanks. For now I pretty sure is the windows 10 issue. I am a windows 10 insider user, so my windows 10 version is 1709, OS build is 17063.100. Yesterday I installed official release version Windows 10 (1709 RS3). Achivement and progress become normal , already unlocked some achivements.