Hi,
We are experiencing this issue with Server 2012 R2 as opposed to Server 2008 R2. There is a hotfix for 2008 R2 but not for 2012 R2. Help?!
http://support.microsoft.com/kb/2604066/en-us
We are deploying an application via RDS RemoteApp on 2012 R2 Servers. In certain circumstances the child windows of the application’s top-level window may be displayed two times in different locations. However, only one of those windows works correctly. For
example, when you move the top-level window of the application, the child windows leave behind a display artifact at their previous location. The artifact window can obtain the focus, but will not be responsive to user inputs.
Cheers,
Chris