What EZSrve image level are you running? Some devices should show as Responders only, some as Controllers only, and some as both. Can you send me your Devices.xml file and the DevClusters.xml file to email@example.com. I’ll see if I can find a difference in the device definition that would explain why responders do not display in the scene responders list.
This is my responders list[attachment=0:17d89p3o]RespondersList.JPG[/attachment:17d89p3o]