Ran into an interesting bug with the ZEN16 in 188.8.131.52. I took a completely new hub, upgraded to 184.108.40.206, and then added the very first device, a Zooz ZEN16. The device added fine with S2 Unauthenticated.
The problem is that the component devices do not show up in the list on the Devices page. They do show up on the parent's device page in the Component Devices section, and they also show up in inputs calling for capability.switch, but do not show up on the Devices page. From the parent's device page, I am able to get into the device page for the components.
Saving preferences for the parent device has no effect. Rebooting has no effect.
Is there some hidden flag that controls whether component devices are shown on the Devices page? FWIW, I have another device (not a ZEN16) on the same hub that does show its component devices on the Devices page. I also have a ZEN16 on another hub that also shows its component devices on the Devices page.