I’ve been messing with this some more, and I think this is related (though it’s hard to prove) to some zigbee lights I’m trying to bind to one of my switches (Acuity Brands Lighting (ABL) WF4C_WF6C control via MQTT | Zigbee2MQTT). If they’re in the network, then I’ll get the flashing light behavior, mostly from the switches closer to the the room the lights are in. I think that something about routing these lights’ messages is crashing the switches causing them to reboot. I’m not sure how to prove this more concretely though.