Hauptstrecke Rhein-ruhr Collectible Problem

I have all 80 collectibles but the achievement has not unlocked is there a way to fix it?

 

Did you open the game club that shows all the achievements in the game? This can sometimes fix a stuck achievement (in any Xbox One game).

If not, you may have to create another driver profile and recollect them again. Thankfully the collectables are at the stations on this route.