Hi,
Please download and install the latest release of Microsoft remote desktop to see if the problem persists.
https://install.appcenter.ms/orgs/rdmacios-k2vy/apps/microsoft-remote-desktop-for-mac/distribution_groups/all-users-of-microsoft-remote-desktop-for-mac
If the problem still could not be resolved, we may need to configure below group policy on the remote desktop.
- Local Computer policy->Computer Configuration->Administrative Templates->Windows Components->Remote Desktop Session Host->Connections->Select RDP transport protocols
- Local Computer policy->Computer Configuration->Administrative Templates->Windows Components->Remote Desktop Session Host->Remote Session Environment->Use hardware graphics adapters for all Remote Desktop Services sessions.
Thanks,
Eleven