It used to work, then it suddenly broke. I couldn’t sign in, so I tried restarting the computer, and then give it another go, with no success. Then I uninstalled the game and installed it from microsoft store again, still doesn’t work. I run the game, and when we see that blue Ford GT and it asks to press A to start, it starts loading, a window appears, then instantly disappears, and it again asks to press A to start and so on. I tried signing in forza hub, and about the same happened; ‘Please sign in to use the forza hub.’ I press sign in, a window appears, then instantly disappears, and it still asks me to log in, and so on.
If you have any idea, please share it 
Thanks