C8 sporadically locking up/unresponsive since the beginning

[danabw]

Did you try this for the 0x0038 device? If not, give it a go...

@danabw

Simple first steps - try these first

1. If a Discover button appears for a partially included device, selecting that button can allow a device to successfully complete joining the Z-Wave mesh.
2. Shut down the hub and restart it to force restarting of the Z-Wave radio - this can help w/ghost issues:
   -- a. Shut down your hub from the Settings menu.
   -- b. Then pull the USB power plug (recommended to do at the wall connection, not at the hub as the hub connection can be a little fragile, at least on some C-7 hubs) to completely remove power from your hub after it's shut down.
   -- c. Wait 30s
   -- d. Plug the hub in again.

Using the hub's built-in ghost removal tools
Below is a detailed summary from @jtp10181 of best way to use the hubs built-in ghost removal tools. Try these tools first before trying Ghost removal with a UZB stick:

• Click Refresh on the device ONCE, wait for the page to refresh. The Remove button should then appear. Click Remove ONCE. Again, wait. May want to have logs open while doing this as well.
• Sometimes it takes multiple tries of the Refresh button to get the Remove button to appear. Try to be patient and NOT click Refresh furiously. If you start getting "Zwave busy" error messages in your logs, power down and reboot again.
• It is common for it to take multiple tries at the Refresh/Remove buttons to remove a ghost, give it at least five or six attempts before assuming it's not going to work. Shutting down/restarting between successful removals can also help.
• From some anecdotal evidence, removal of a ghost device may be more successful if the device the ghost was created from is disconnected from power while you're trying to remove the ghost. If it's a plug, you can unplug it. If it's a switch and has an air-gap, pull the air gap. You can also flip a circuit breaker to temporarily remove power from a mains powered device. I'm most cases may not help at all with removal, but an option you can consider trying.

If the above steps don't remove the ghost...

The hub may not be able to remove Ghosts that have too many existing neighbor nodes. You can use the "Hubitat Z-Wave Mesh Details" tool (available in Hubitat Package Manger) to easily identify the neighbors of your ghost device.

You can try the following steps before moving on to using a Z-Wave USB stick:

• Install the Z-wave mesh tool [BETA] A Z-Wave Mesh Tool [C7 and 2.2.4+ Only] from Hubitat Package Manager and use the Mesh tool to identify the neighbor nodes that the ghost devices are hanging onto. Use the expand arrow in to expand the ghost device row in the Mesh Details app to see the device's neighbors. See the "Neighbors" column in the example screen cap below:

If you exclude the neighbor nodes, then the ghost node should also be removable.

Steps:

1. Create a virtual device for each neighbor.
   -- Add Device at top of Device page, choose "Virtual" device type, and choose virtual device types that match w/your actual devices.
2. Use the Settings>Swap Apps Devices tool to swap out each neighbor w/a virtual device (this maintaings your automations using these devices)
3. Exclude the neighbor devices
4. Use the HE hub steps above to remove your ghost(s)
5. Re-include the neighbor devices
6. Use Swap App Devices again to swap the restored devices back into their automations, dashboards, etc.