Flickering RDP Server 2016

For some time I have been investigating flickering both in our 2012 Terminal severs and now the same thing in our 2016 Terminal servers.  I know that flickering problems are well documented around various forums and help portals but every suggested fix has done nothing for our situation.  Here are the fixes so far that have not worked:

Group Policy:

Always show icons, never thumbnailsEnabled Always show menusEnabled Display file icon on thumbnails Enabled Display file size information in folder tips Enabled Display simple folder view in Navigation pane Enabled Display the full path in the titlebar (classic folders only) Disabled Hidden files and folders Do not show hidden files and folders Hide extensions for known file types Disabled Hide protected operating system files (Recommended) Enabled Launch folder windows in separate process Disabled Remember each folder's view settings Enabled Restore previous folder windows at logon Disabled Show drive letters Enabled Show encrypted or compressed NTFS files in color Enabled Show pop-up description for folder and desktop items Enabled Show preview handlers in preview pane Disabled Use check boxes to select items Disabled Use sharing wizard (Recommended) Enabled

HKEY_CURRENT\USER\SOFTWARE\Classes\CLSID\{031E4825-7B94-4dc3-B131-E946B44C8DD5} on user logon.

As I have stated none of these have worked.

Here is a video of the flickering:

https://photos.app.goo.gl/EvNp8jHLG2Z6Hsjh6