So the good part is that I don’t have a zwave problem. Yey! The bad part is that a change to zwave switch handler that was implemented with yesterday’s update, broke my set up, making two of my Smart Lighting instances turn on and off switches every 15 min. It took me about four hours today to identify the problem and find a solution (changed the device type from zwave switch to dimmer switch). Bug report was submitted, pending engineering review…And here went my do or die attitude…