I recently bought three Zooz ZSE40 motion sensors and tried adding them to my C7 hub. These have turned out to be a huge pain to add but eventually at least had them show up. In the process, it seems that the ZSE40s brought down my entire zwave mesh -- as in, devices can no longer be controlled remotely so all of my automations fail. Zigbee devices still work fine, and the hub still receives wall switch notifications / button presses.
The first time this happened, I spent a couple hours trying to figure out why, and eventually was able to get things working again - how, I'm not sure, but I think it was a combination of turning back on a device which I had added for use later and removal of some ghost devices (many of which will not remove).
I tried adding the ZSE40s back to the hub again tonight and it broke my zwave network again! I was able to get things back up and running, but now I'm afraid to use these motion sensors.
Anyone have a clue why this would happen? I have about 30-40 devices (mostly wall switches) so have a pretty good mesh and one ZSE40 which I was able to successfully add and keep connected.
FWIW - ZSE40 firmware is all 32.2 and Hubitat is 22.214.171.124. Zwave logs are pretty quiet but do show commands being sent. Routes look relatively normal when working or not (almost everything is joined without security).