well lets see. after many hours of troubleshooting and time online with MICROSOFT tech support we were unable to resolve the issue. So honestly your initial response was less than helpful.
It is quite obvious now that there is more going on here than just a hung application. The only recourse left was to uninstall the app and see what else could be done.
so either way I could sit and look at a blank black screen until it eventually closes on its own or I can troubleshoot the issue from the start. Now I am at the start and I am not the only one by the look of it and MSFS is not the only application that has this issue.
I am now looking at a Microsoft Store issue and the way it stores the data on your PC. It is messy and even a clean uninstall of an app leaves a huge trail behind.