My FH4 Demo & FH3 are having the same problem when I try to play the game each will open to the first screen and then the bottom right circle will NOT spin and the program will close in a few seconds.
My Motorsport 7 game does work and opens without a problem, so I do not believe my Xbox sign in is the issue.
Also, none of my additional car packs from FH3 are available to be re downloaded in my Microsoft Store.
Thank you