Remote Desktop failing with Error code: 0x50331742 Extended error code: 0x0

Looking up Remote Desktop error codes, the list ends at 50331728 so 50331742 is off the charts.  What does error code 50331742 mean?

https://social.technet.microsoft.com/wiki/contents/articles/37870.remote-desktop-client-troubleshooting-disconnect-codes-and-reasons.aspx

Windows 10 Pro 22H2 x64bit

Also I noticed as I attempted to debug that UmRdpService won't start.   It gives an error indicating the service started then stopped but it won't stay running.  

Remote Desktop was working fine a few months ago then stopped.

Debug steps tried:

• Checked that all umrdpservice dependent services are running
• Checked that umrdp.dll (Version 10.0.19041.1806) is present in the System32 folder
• Ran Sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth completes with no error.
• Reset the service with "sc config UmRdpService start= demand"
• Outbound RDP connections work fine, inbound fail with the 50331742 error code.
• Network is set to Private
• Cleared the RDP cert in the cert store and restarted the service to create a new one
• RDP listen port is correctly in the registry
• Set Telnet fDenyTSConnection setting to 0
• Group policy shows "Allow users to connect remotely by using Remote Desktop Services" is enabled
• IPV6 is disabled
• Custom Scaling is disabled
• RDP Firewall setting are open
• DNS is working fine and can resolve and ping the hostname
• Event Logs show no errors
• Verified user account is has permission to Remote Desktop.

Please advise because I am out of ideas of what to try next.  Something is stopping the service from starting and I can't think of what that could be?