HI
1"I am using an 8 GB Ram 4 core server"
How many domain users will remote access this issue RD session host server concurrently?
When the issue happen, could you please check the usage about CPU and memory in task manager on VMware session host server?

2.Is it possible to increase memory for this issue VM?
3.If we logon VMWare session host console by using the issue user account, will the same issue happen?
4.Are there 2 display cards list in display adapters ?
Can we check if display card running fine in display adapters in device manager on issue session host server?
THE HYPERCONVERGED HOMELAB—WINDOWS VM GAMING
http://codefromabove.com/2019/02/the-hyperconverged-homelab-windows-vm-gaming/

5.We can try to enter gpedit.msc to set below policy then reboot the issue server then check if the same issue happen?
Computer Config > Windows Settings > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Connections > Select RDP transport protocol
Use only TCP
Computer Config > Windows Settings > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host >remote session environment
use hardware graphics adapters for all remote desktop services sessions
enable
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