Problem with Forza Horizon and Xbox app

I have checked it, it is not my hardware and driver problem.

This problem will only occur if the xbox app is connected to the Internet.

This problem makes forza horizon 4 no way to play online mode.

If there is really no way to solve it, can I refund the Forza horizon 4 Ultimate Edition?

The update only solved the problem with the xbox app not starting but forza horizon 5 is still not showing up in the group posts tab

This is not game app problem.

Windows store app does not show my game.

There is no forza horizon 3 in store library.

All of my Microsoft and Xbox games are downloaded on my external drive including the previous Horizon, which is Forza Horizon 4. I changed where new apps are stored when downloaded from the Microsoft store to my external drive but it still wont download Forza Horizon 5 to my external drive. On the Xbox app it wont show my external drive as an option to download to. I am able to download any game from the Microsoft store and Xbox app to my external drive except Forza Horizon 5.

I have the very same Problem. When i try to Join a Forza Horizon 4 Club ingame it tells me "Communication error with the Forza Horizon 4 Servers."

If I try it with the Xbox App on PC, it tells me that I should change my Privacy and Xbox Settings on Xbox.com (this applied to every single club, or me trying to create one).