Found a bug in Receiver 4.7
Whenever I launch a published desktop to XenApp 6.5 in Desktop Viewer full screen mode, Receiver creates a grey frame around the target Desktop (picture attached)
Resizing the Desktop Viewer to window and back to full screen fixes the issue.
It doesn't occour to XenDesktop 7.x Published Desktops or with Receiver versions prior to 4.7.
Tested with Windows 7 and Windows 10 Clients.
Can anyone verify this behavior on his XA 6.5 farm, please?