I have a LZW31-SN and an dumb switch wired as a three way. It functions as expected except that the lights turn off by themselves. Sometimes its after 10 minutes, sometimes after 7, sometimes after 2. If I flip the dumb switch and try again, the same thing happens.
Is it a problem with the switch or wiring or bulbs? It’s weird that it works for a while. I removed it from my z wave network to see if that would help but it persisted.