Like many of us, we have more time-based automation. 1 am, everything stopped. 30 minutes before sunrise, turn on some lights - nothing crazy. They cover a wide range of devices - Hue bulbs, Nest thermostats, iDevice smart sockets and a few other brands. One week ago, all my automation stopped. I could verbally ask Siri to run them and I could run them from the app - and they worked reliably and consistently - but based on the programs? Not. I restarted all 15 hubs. My router. My switch and router. My access points, my switch and my router. All my hubs again (burning "Wife's Acceptance Points" like crazy). I removed all the automations and recreated them by calling everything individually, instead of calling them through a scene without any difference. I was about to wipe and recreate my whole house when I realized. At Christmas, I bought my son Nanoleaf lights for his room. It looks great and integrates pretty well with Homekit. But I did not know that he set up a program in the application to start them at 7 in the morning and for them to light up in a period of 10 minutes. That automation, which we can't do in Homekit, broke all the other automations in Homekit. I deleted it and everything works again as expected. So if you come across this - here it is. Delete Nanoleaf automations.