Forza Horizon 5 error: The path cannot be traversed because it contains an untrusted mount...

I used to play FH5 a couple of moths ago, but then uninstalled it. I decided to redownload it again and start playing, but whenever I press 'Play' it says: "The path cannot be traversed because it contains an untrusted mount point."

Here's the thing, I tried to repair it like 10 ways that Reddit had recommended, but nothing works. I always download games on my external drive as there is no way to fit it in my C drive (it was never a problem tho). Nothing worked.. I tried running scans, reseting caches, running troubleshooters, reseting & repairing apps in settings, also reinstalled it 3 times in 2 days.
I have Windows 10, 22H2.

Is there another way?

:)