Not sure if this info is useful but I hope it helps someone…
After having provisioning issues myself (even after factory resetting my Z-Wave devices that wouldn’t provision), I found that it would provision properly every time if I:
Factory Reset the device (in my case, an UltraPro ZWN4017 Light Switch by Jasco) (you may need to go through an exclusion process if you’ve already tried to add the device)
Add the device via the Z-Wave Integration
Switch over to the Z-Wave JS UI & start the inclusion process there as well
The whole time, I’m also toggling the light switch on the Z-Wave device