I haven’t figured this one out yet, but figured if I’m having the issue, someone else may be as well.
I have several LZW36 switches in our home. Since switching to using the zwavejs2mqtt docker, we’ve had an issue where our ceiling fans will turn off randomly during the night while we’re all asleep.
Problem is, in Home Assistant, this appears to be a local control toggle. 
?
It’s happened almost every night, usually between 11:30PM and 2:30AM, and on multiple fans. I don’t see much relevant information in the zwavejs2mqtt logs either. This is the only thing that I found that matched the timestamp:
2021-03-06 01:25:18.182 DEBUG MQTT: Publishing to zwave/4/38/1/currentValue: {
time: 1615015518181,
value: 0,
nodeName: 'mbdrm_ceiling_fan_light',
nodeLocation: 'master_bedroom'
} with options { qos: 1, retain: true }
2021-03-06 01:25:18.183 INFO ZWAVE: Node 4: value updated: 38-1-currentValue 0 => 0
2021-03-06 01:25:18.287 DEBUG MQTT: Publishing to zwave/4/38/2/currentValue: {
time: 1615015518286,
value: 0,
nodeName: 'mbdrm_ceiling_fan_light',
nodeLocation: 'master_bedroom'
} with options { qos: 1, retain: true }
2021-03-06 01:25:18.287 INFO ZWAVE: Node 4: value updated: 38-2-currentValue 45 => 0
The actual zwavejs log doesn’t show anything at the timestamp, so all this really shows is that this particular node has been updated.