H6004 not being seen

I have the API key up and running successfully with 8 devices being detected. 4 devices are not detected - they are all H6004 series WiFi + Bluetooth bulbs.
I've verified that all 4 are connected to my WiFi router by verifying them in the app, and also verifying they have IP addresses assigned to them in the DHCP routing table on my router.

The API doesn't recognize them as devices. In the supported devices list, it lists the H6004.

All ideas are welcome.
Thanks to all for your time.
Cheers