I just installed the lastest build 17036 of Domoticz on my test Raspberry Pi 3B (without z-wave stick) with 32 bit bookworm.

Info: https://github.com/domoticz/domoticz/issues/6508

Open z-wave is back in the hardware settings.

But now my System Setup Menu is messed up, with a lot of empty fields ...

No I don't built my own Domoticz. I install it from the official site: sudo bash -c "$(curl -sSfL https://install.domoticz.com)"

I have the same issue on 4 different Raspberry Pi's: 2x 3B, 4B and a Zero 2w. No Open Z-wave hardware in list in version 2025.2.
On the 4B I updated from 2025.1 to 2025.2 ...

Today I made again a new SD card for my Raspberry Pi 3B with bookworm 32-bit. Downgraded the kernel to 6.1 for the Z-wave stick. And installed domoticz 2025.2.

In the hardware list I could not find Open Z-wave.

When I put my domoticz backup back, I got an error message in the hardware overview ...

Why I can not find it anymore in the list of the hardware devices?

I tried it also on a different Raspberry Pi (4). In this Pi I don't have a z-wave usb stick connected.
When domoticz 2025.1 was installed I saw OpenZwave in the hardware list.
After update to domoticz 2025.2 it was not there anymore ...

I think I have the same issue.

Today I made a new SD card for my Raspberry Pi 3B with 32-bit bookworm.
I downgraded the kernel to 6.1, because of my Aeotec z-wave gen5 stick (will crash with newer kernel).
I installed the lastest stable version of Domoticz (2025.2)
After I restored the domoticz ...

It is a new firmware from a few days ago
.. maybe they fixed our issues?

Did you try to refresh the node information in:

Settings > Hardware > Z-wave Settings > Select a not working NodeID and click: Refresh Note Info...can take a while.

(I am using the open z-wave hardware)

New firmware for Hue bridge:

Dec 8, 2025

Bridge v2 Software version 1974142030

This version includes changes to support migration of multiple bridges to a Hue Bridge Pro; full functionality will be available in upcoming app releases, so stay tuned!

We’ve made several small changes behind the ...