Hi,
According to the system requirement stated in the tool download page, it mentioned the tool supports Windows Server 2012, Windows Server 2012 R2 but the higher version is not included.
Moreover, this diagnostic tool is used to troubleshoot and diagnose issues with RDS deployments via collecting some event logs.
In fact, there are other steps we could make to enable the event logs for us to investigate failure of RDS deployment.
Kindly refer to below KB for more information of RDMS UI log files.
Useful log files for troubleshooting RDS issues
"This article introduces the logs that you have to collect when you troubleshoot issues during one of the following operations:
• RDS installation
• Collection creation
• Virtual machine provisioning"
https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/log-files-to-troubleshoot-rds-issues
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Hope this helps and please help to accept as Answer if the response is useful.
Thanks,
Jenny