I posted this in another thread, but just for those following here: I received an email last night from Zooz saying that Silicon Labs had just released 7.22.1.0 and Zooz now has a version 1.5 that supposedly fixes this issue. In the SiLabs release notes, it previously showed issue number 1227385 as “The 700/800 controller can lock itself up. The controller is not able to send acknowledgements and the data transmitted is corrupted”. Now in these new release notes, that issue is listed as “While the controller stability has been greatly improved in Z-Wave Classic, the workaround implementation is still recommended on the host side”. Not sure why they changed the wording, nor do I understand why that is still listed under known issues if it is “fixed”. However, under the list of fixed issues, you can find number 1321606 which is “Fixed an issue causing a controller to be locked in a constant beaming pattern. The behavior was caused by an incorrect configuration entered in the controller NVM” which sounds like the issue we were all seeing.
Oddly enough, while you can download the 1.5 firmware from Zooz here and this is the actual file link. Interestingly, their own release notes do not yet list the 1.5 version or the changes. Still it’s something. Anyone wanna roll the dice and update to see if it is fixed??