NetIQ Privileged User Manager
When connected to a windows server via the RDP relay if the credential being used is not the local administrator then when any administrative tool is launched, eg Users and Computers, an error stating "The resource is in use" occurs. This occurs even if the credential has sufficient rights, eg domain admin account.
This has been reported to engineering.
At current the work around if this occurs is to use a Local Admin account with the PUM Privileged Users account.