Two devices "unknown". Others of same type, success

I have a HA running on a Rpi4 in a Docker container with a Aeotec Z-stick 5.

I have a bunch of Leviton smart switches and dimmers. Most install correctly. But two of them result in Unknown Node <#>.

I’ve unpaired them and re-added - both with the z-stick detached and attached. I’ve rebooted. I’ve healed and tested the network. But no luck.

As far as I can tell these are the same models as the devices that successfully added. And these worked on my previous Hubitat network.

Any idea what’s going on and how to fix? It’s baffling to me!

Fix: Factory reset the device.

Duh. Should have tried that earlier. Worked perfectly.