Hi, I recently started automating my house (in Australia) with Hubitat and I've run into a number of quite basic issues. I'll give a few examples here, I'm hoping someone can help with. Most of which seem like bugs or reliability issues. It is all quite frustrating given I feel what I'm doing should be very basic functionality.
My set up is generally:
- Mercator Colour Temperature Zigbee V3 Downlights (around 3 to 6 per area), connected directly to C7 Hubitat on the 2.2.7.128. We have approx 30 of these. Using the Advanced Zigbee Bulb CT driver.
- Philips Hue Dimmer Buttons, connected directly to the same hub
- Philips Hue Motion Sensors, connected directly to the same hub
- Philips Hue Smart Plugs or Smartthings Smart Plugs connected directly to the same up around the house to form the mesh, and provide smart outlets.
Very basically, what I want to achieve is:
- When there is motion, turn the lights to 100%/5000k during the day, 100%/2500k in the evening, and 1%/2500k overnight.
- When the Dimmer button is pressed, turns the light on, to 50%, to 20%, or off, and disables the motion rules for 1hr. Again, the temperature is adjusted per mode.
This is what I've done so far:
- Group each 'area' into a 'Group' using the 'Group and Scenes' app.
- Create scenes to define the 3 scenes for each area (5000k, 2500k, 2500k @1%).
- Using 'Motion and Mode Lighting Apps' to create the necessary motion rules referencing the 'scenes' as defined above
- Using 'Button Controllers' app for the buttons to reference the scenes above.
Here is what works with 100% reliability:
- 'set level', 'set temperature' for each of the individual light bulbs
Now, here are all my problems 
- With Zigbee Group Messaging disabled, and 'Metering' disabled: Not all the lights turn on nor off, maybe 3/4 or 4/6 each time. If I manually try to turn the group on again, it will sometimes turn them all on after a few attempts.
- With Zigbee Group Messaging disabled, and 'Metering' set to 75ms: All the lights will turn on 100% (so far) of the time. However, using the scenes I've defined (also with Metering on 75ms), the colour temperature doesn't always change to the correct setting. When this happens the group/scene thinks the temperature is correct, but the individual bulbs show that it has not yet been changed.
- With Zigbee Group Messaging enabled. I lose the ability to fade on/off, as a result, the lights go from 0 to 100% instantly. This is not ideal, as I'm quite use the smooth transitions I had previously with Hue. Also, in the mornings after no one has used the lights for 8hrs or so, the first time it turns on it will turn on, then immediately turn off. The individual bulbs indicate they are 'on', but are infact off. If I manually turn the group on after this, it will turn on correctly. It is almost like it has a false start every morning...
For the record, I've disabled on/off optimisation (Groups) and disabled 'activation optimsation (Scenes). This is because I often have to reactivate what failed, I figured these settings will prevent me from doing that.
Also, I don't think I have mesh issue, as I every bulb can be very reliability controlled individually.
That's it!
I'm keen to hear if anyone else with many Zigbee downlights suffered similar issues or not.
