- Do a proper hub shut down
- Remove power for 10-30 seconds
- Power back up
- Wait a few minutes
- Open the logs in a new tab to check later
- Press the REFRESH button ONCE on one of the ghost nodes
- Wait for the page to refresh itself
- Check for REMOVE button under that device now.
- If not, try Refresh again (up to 5 times).
- Press Remove once and Wait.
- Watch logs for any errors from remove process.
Sometimes this will not even work and they are stubborn.
There is an entire thread and guide dedicated to this subject: How To: Remove Z-Wave Ghosts using a UZB Stick