You have the MQTT addon installed as well? Do the devices show up under Config > Integrations > Open ZWave? You can launch the OZW Admin tool (either through the integrated VNC or from your own computer) and see the status of the network and the devices, or if you’re handy with MQTT you can use a MQTT Explorer tool to see the messages flowing through. Maybe restarting your Home Assistant (just HA, not the device/Supervisor) already helps? Make sure your old Z-Wave network doesn’t automatically start so it doesn’t interfere with the running OZW.