This guy has been working fine for years, a few days ago he quit working. After trying exclusion, inclusion, factory reset, this is what I am left with.
Admittedly, it's pretty old, but maybe it just needs to be excluded, included. Or if it won't, I still don't want this entry. Refresh, remove, does nothing.
First thing to try if a device locks up is to power cycle it (air gap first then breaker if that doesn't work).
Did the hub never find it when you tried exclusion?
I have tried that power down, It's a plug in module. No change. Every time I put module into exclusion mode, Hubitat ends up saying unknown module excluded, but that node is still in Zwave list.
That means either you factory reset it before excluding it properly, or the device had some sort of malfunction and factory reset itself.
You should be able to pair it back. What hub do you have? I think the C8 may have issues onboarding those really old Leviton devices, but if they migrated from something like a C7 they would work.
As for the ghost node issue, here is the unofficial guide:
How To Remove Ghosts using hub tools or a UZB Stick
Download the Hubitat app
