Citrix XenDesktop 7.x - Black Screen when connecting to Published Desktop
When connecting to a Windows Server 2008 R2 Published Desktop (provisioned as a VM, not a physical machine) with XenDesktop 7.x you might receive a black and blank Desktop, no Desktop Icons are shown, and the Desktop stays that way:
Whereas connecting with RDP works normally, as long as the users are members of the local group Direct Access Users.
There are no significant Warnings and/or Error messages in the corresponding server's Application and/or System Event Log. Everything seems to look and work as expected. In my case the error started showing up after moving the VM from one Hyper-V server to another Hyper-V server.