For anyone trying this on a nested virtual machine, vSphere/ESXI 7.x, running Windows 21H2 Enterprise LTSC, make sure you install Microsoft Edge Web View Runtime or an "application not responding" will present itself within the task manager and the application will not open. Ben made a similar comment below. It should probably be mentioned as a "system requirement" as it might save some folks troubleshooting time. I almost gave up on the application. It is running now and I am testing my first image. Also, I did what Ben did and made the registry change in advance, not sure it was necessary in my case. Hopefully it works. Thanks to the developers!