do not work achievements in forza horizon 3

Without knowing which achievements are being affected, your best bet is to check TrueAchievements. They typically have solutions for glitched achievements:
https://www.trueachievements.com/

For Forza Horizon 3, specifically:
https://www.trueachievements.com/game/Forza-Horizon-3/achievements

I played forza horizon then forza 3 beat horizon then got 3 played 3 until I got to year 3 in season racing went back to horizon and got the achievement and cars tried it on a different profile and it wont give me the achievement so ignore all this garbage
about swapping save devices and what not there is a bug or 2 in horizon and that is one of them so it may or may not give you it there isn't any thing you can do about I have tried all theories on how to get it and non of them work

please check my achievement

[table][tr][td]Horizon Hardcore[/td][td][/tr][tr][td]Complete a championship starting at every race route in the game.[/td][/tr][/table]

Hi,

To help you with your concern about Forza Horizon 3 achievements, we recommend that you post this query on this

link.



Note: If you completed the requirements to unlock the achievement but it doesn't show, it may not be synchronized with Xbox Live. Allow up to 72 hours for this synchronization to take place.

Keep us posted.

Having the same problem with the Forza Horizon 3 achievement "Throwing your weight around".