After a Pelco camera is discovered by a NetBotz appliance, decreasing the secondary image stream size on the camera causes a rendering issue.
NetBotz Advanced View
The Pelco camera does not update the NetBotz appliance with the new image stream size.
Rebooting the NetBotz appliance should cause it to update with the new image stream size. If this does not resolve the issue, remove the Pelco camera from the NetBotz appliance, and rediscover it.