Were all previous beta hubs the ones that were beta testing this one as well? I was running previous beta firmware but not sure if mine was supposed to be updated to this.
Regarding the Z-wave issues, basically it is the Z-Wave chip locking up, and the host application cannot talk to it anymore, therefore a power cycle is needed. To fix the issue, we would have to update the firmware on the z-wave chip. We are hopeful that we get to do that in the next release, this is pending on how much test coverage we get done from now till then.
In the meantime, In 19.14 we added a minor change that may help with some of the unresponsiveness of the Z-Wave chip. In the meantime, we are trying to find other workarounds.
Also, just because we power cycle does not mean the network is getting reset or devices are dropping off. We are offline for a short period of time, and can quickly begin to receive and transmit messages.
I have got to add this about 19.14 Firmware. With the exception of having to delete some Smart Lighting Apps and reinstall to get them to work properly. My system is working faster and better than it ever has. I had 3 Motion Sensors that I had removed the batteries and threw in a drawer, because I thought the were dead, 1 Samsung, 1 Lowes, 1 Aeon. Once I got the 19.14 updated and realized how much better my system was running, I was able to add all 3 Motion Sensors back to the system and they have been working perfectly. Keep It Up SmartThings !!!
We put 19.15 on a few hubs with targeted fixes for some issues a few people had reported. Although they didn’t make anything worse they didn’t make it better enough for us to release the changes to everyone so we’ll be rolling those few hubs back to 19.14.
If the changes were Z-Wave related, the stability of the Z-wave network has improved a bit since it was deployed. .14 was a complete mess which rendered Z-wave almost unusable. At least with .15 my doors are locking when they’re supposed to.