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.