I'm likewise having difficulty adding a Zooz Zen16 device. I only see a power switch and three 'basic association' nodes, when with the 500 series dongle on the ISY I had the expected three inputs and three outputs which worked properly. Z-Wave X-ray shows "Interview Not done" for each attempt to add the device though I'm able to set parameters. Hoping this gets fixed in the next update, this is one of the most important devices in my system.
edit: After restoring from the ISY 994i backup and attempting to add this device, as the afternoon progressed Insteon functionality just stopped working, and then I could no longer find the eisy in the finder. This seems to mirror some of the reports I've seen in other threads. I think I'll go back to my original functioning setup and come back to this project in a few months once some of these bugs are worked out.