When an RDP webapp is configured and has an application assigned to launch upon login to term server, it fails to load the app and gives the user a desktop login.

This happens if the user has Microsofts RDP client for the mac installed, it picks up the RDP connect and launches instead of the Java Proper RDP Client. The parameters for login to the rdp connection work, but the syntax for loading an application does not. The solution is to remove the Microsoft RDP Client.