https://wccftech.com/windows-10-rdp-black-screen-issue-confirmed-by-microsoft/

Microsoft has been trying to make things better with the Windows 10 update process, but a few things keep going awry. A new issue has been reported that is affecting Remote Desktop users running the latest Windows 10 May 2019 Update with older display drivers. Some of these users are experiencing black screens when connecting to remote computers.

Here’s what one user had reported soon after the release of the new Windows 10 version: