Having some issues, but I feel I’m very close if someone could help. I successfully migrated over to Z-Wave JS UI and with fully working entities I took an NVM backup of my 700 Series Zooz. I shut down HA, swapped USBs, went into ZW JS UI settings and selected the new 800 Stick. I did a restore and can see my devices in ZW JS UI, however HA is showing entity not available. I have restarted HA and reloaded integrations, etc. What step did I miss? Thanks!!
Edit: The entities work, but I seem to have lost all the device ID names in HA. They all reverted to their default names. So while I can control them, it broke everything in Lovelace/automations. How can I fix this? 
Edit 2: Resolved! Once I had the NVM restored on the 800 I just restored my last HA backup, changed the ZW JS UI settings to the new 800 Stick and everything works!