I have the same problem, but with some additional info from OZWlog
I try to remove my unknown node with node_id: 21 which I set to is_failed:true as described in citation of FutureTense. i click on SetState and go stright to ZWave control panel. There I select the the unknown node 21 and click the button “RemoveFaileNode”.
So far, so good. But the device is not removed. Also a restart HA or a reboot does not help.
After a reboot the state of is_failed: becomes false again.
So I watch OZW_log.txt what happens:
2020-05-11 13:16:31.401 Detail, Node021, Queuing (Controller) Remove Failed Node
2020-05-11 13:16:31.401 Info, ControllerCommand_RemoveFailedNode
2020-05-11 13:16:31.401 Detail, contrlr, Queuing (Command) ControllerCommand_RemoveFailedNode: 0x01, 0x05, 0x00, 0x61, 0x15, 0xcf, 0x41
2020-05-11 13:16:31.401 Detail, Notification: ControllerCommand - Starting
2020-05-11 13:16:31.404 Detail,
2020-05-11 13:16:31.404 Info, contrlr, Sending (Command) message (Callback ID=0xcf, Expected Reply=0x61) - ControllerCommand_RemoveFailedNode: 0x01, 0x05, 0x00, 0x61, 0x15, 0xcf, 0x41
2020-05-11 13:16:31.406 Detail, contrlr, Received: 0x01, 0x04, 0x01, 0x61, 0x08, 0x93
2020-05-11 13:16:31.406 Detail,
2020-05-11 13:16:31.407 Warning, contrlr, WARNING: Received reply to FUNC_ID_ZW_REMOVE_FAILED_NODE_ID - Node not found
2020-05-11 13:16:31.407 Detail, Node147, Expected callbackId was received
2020-05-11 13:16:31.407 Detail, Node147, Message transaction complete
2020-05-11 13:16:31.407 Detail,
2020-05-11 13:16:31.408 Detail, contrlr, Removing current message
2020-05-11 13:16:31.408 Detail, Notification: ControllerCommand - Failed
Everytime I click on RemoveFailedNode I get the same log lines.
It will remove node 21
But then there is something about Node 147 ???
Any idea?