Homekit Automation Triggers stopped working

A follow-up... I got my automations working again.

First, I reset/repaired my HomePods and finally got them updated to 12.1. That alone did not fix the automations.

Then, I tapped on each of my automations to view its details, changed one element, changed it back, then tapped the Done button to save. Perhaps this was all that was needed?

After that, all my automations started working again.

Automations are back here too, I rebooted my TV and in the Home App I deactivated and reactivated all automations...

Apple must seriously work on Homekit stability.

Ditto. Siri and manual control of all HomeKit devices works fine for me. Automation triggers now never fire, even though they work fine from the "test this automation" button. This applies to all of my triggers: time-based, sensor motion-based, device-based. We're using Philips Hue motion sensors, some Hue lights, some LIFX lights, Lutron switches, iDevices plugs, August lock, and Ring doorbell. All of this an en eero mesh WiFi network.

Everything was working fine until the iOS 12.1 and tvOS 12.1 updates (like you, we have several Apple TV hubs). Now automation triggers never fire.

I noticed that our two HomePods did not receive the 12.1 update and are stuck at 12.0. The Home app refuses to update them. So I will try resetting them to factory defaults and see if that helps at all.

I have tried to get simple automations working for the last 6 months. I've gone through various updates from iOS 11 to 12. I have 2 Apple TVs, and one is set in standby. It is totally unreliable and I'm a software engineer and have gone through all the resets and fixes. I am very disappointed in the quality of software that Apple has produced for this. It is extremely brittle. There appears to be no mechanism for reliably restarting automations between iOS versions, often having to delete and reset the automation. And these automations are simple. Turn outlet on at 8am. Turn outlet off at 1pm. If one cannot depend on these automations, then they are of very little use. Even when the automations are 'working', turning a distant light on seems to fail. You'd think when the software cannot temporarily contact a device, it would try again intermittently as long as it is before the 'turn off' time.

I swear this is the worst software system I have seem from Apple and well below their standards. I wonder if Apple has gotten into the habit of simply writing software, but not using it themselves. For there is no way this would be tolerated if all their managers were depending on Apple automations.

Same problems with me. Automations with fixed time trigger are working again after a lot frustration, but sun set / sun rise are still not working.

Any suggestions?

Same problem here, automations stopped working since 12.1 update

Again having the same problems. Sometimes time trigger work, sometimes not.

I can't find a logic explanation.

Apple support: Please fix this asap!

just bought a brand new Apple TV 4K 32Gb connected to Homekit (disconnect the iPad hub) and now even sun set trigger is working again.....Let seen what happens tonight when the lights have to turn off at a fixed time ....