Forza Horizon 3 Add-ons suddenly not working(PC)

To start off I am on my PC, not a xbox, but I cannot seem to find a solution or help anywhere else. I recently purchased Forza Horizon 3 and have been playing non stop for the past week or so. I went to play it today, and all of a sudden, all the car packs
you can buy are not working. Every single car pack that I own(which is all of them) doesn't work, within the game I try downloading cars(that I previously downloaded/added to my garage and used them in races) and it gives me a marketplace error. When I look
at my library in the Microsoft store, all of the car pack add ons are showing an "error" and a message saying "[insert dlc name] is not compatible with this device." And like I mentioned, these dlc/add ons were working yesterday. Anyone know how to solve this
issue, or point me in the right direction to get this fixed? I already tried uninstalling the game and reinstalling but that didn't work. Thanks in advance.

:)

 

Got a code but doesn't install

i having problems with the forza horizon 3 Ultimate add ons pack not downloading

 

Available Addons

Hi Wildboy Wiley

The "Top Add-ons" on xbox.com or the store on the console only shows the top 10 Add-ons. If a game has more then 10 Add-ons, they will not show up, and as far as I can tell theres no way of seeing them all.

For example, Warriors Orochi 3 has over 25 Add-ons, Batman Arkham Knight has 34 Add-ons and Forza Horizon 2 has 32 Add-ons, but yet the "Top Add-ons" sections for this games only shows the top 10. Unless I'm missing something, I can't seam to find anywhere
where you can view all the available Add-ons.

Warriors Orochi 3:

https://www.microsoft.com/en-us/p/warriors-orochi-3-ultimate/bnqt3lcmjtrs?activetab=pivotverviewta...

Batman Arkham Knight:

Buy Batman™: Arkham Knight - Microsoft Store

Forza Horizon 2:

Buy Forza Horizon 2 - Microsoft Store