Many of the zigbee devices paired to my C-8 have become unreliable after the 2.3.5.125 upgrade. I've tried looking at the zigbee logs and nothing stands out to me, I see normal looking check-in messages from various devices around my house.
I've tried rebooting the hub, rebooting the radio with the "Reboot radio" button and rebuilding the network with the "Rebuild network" button.
Power cycling some of my zigbee devices seems to have made them more reliable but they are still not responding to some on/off control events.
One thing I forgot to mention. I had Apple HomeKit enabled with a bunch of devices. That broke a while ago, I hear because of some changes on Apple's side. I disabled the HomeKit integration on Hubitat (while on 2.3.5.125) and that seemed to make zigbee less flaky but it did not eliminate the flakiness.
Ok thanks, it's good to hear confirmation from you that power cycles on devices should help. I tried power cycling a couple of lamps (sengled bulbs) and that seemed to make them more reliable.
I'll power cycle more things and report back with an update tonight/tomorrow.