This article describes the issue in MRC version 11 where no devices are set on RDP.
Dameware Mini Remote Controller version 11
This issue is present in MRC version 11 wherein changes to RDP are not stored. This has been resolved in MRC version 12.
You can check its current settings by following the procedure below:
By checking the devices, they appear to be showing Use MRC viewer but none are set on RDP.