Zigbee Cree bulbs wont hold Item's dimmer setting

Openhabian on Pi 4 running openHAB 3.2.0 Build #2454

I have several Cree Zigbee bulbs … I installed two of them without issue. The other two were working fine in my ST setup, I reset them and added them to OH3. I created Items for them that appear exactly like the two other Cree Items that work fine. (All of this through the UI)

The physical bulb reacts to dimmer changes but after making change, a few seconds later the Item Dimmer setting returns to the old setting (however the bulb brightness doesn’t change)

Looking at the logs for the bulbs that are working I see:

2021-08-16 10:59:04.157 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'Masterbed_Side' received command 60
2021-08-16 10:59:04.167 [INFO ] [penhab.event.ItemStatePredictedEvent] - Item 'Masterbed_Side' predicted to become 60
2021-08-16 10:59:04.175 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'Masterbed_Side' changed from 0 to 60

But for the ones that are not working properly I only see:

2021-08-16 11:59:04.543 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'LivingRoom_Light' received command 0
2021-08-16 12:00:00.979 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'LivingRoom_Light' received command 20
2021-08-16 12:00:04.107 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'LivingRoom_Light' received command 40
2021-08-16 12:00:07.134 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'LivingRoom_Light' received command 80
2021-08-16 12:00:09.730 [INFO ] [openhab.event.ItemCommandEvent      ] - Item 'LivingRoom_Light' received command 100

i.e. no "Predicted’ or ‘Changed’ occurs… however, the bulb is changing brightness.

I have tried various things like waiting awhile, rebooting, re-adding … not sure what I am doing wrong. Any guesses?

Also, just added the light back to my SmartThings set up with no problem.

Well, not sure why I had to do this (when I didn’t need it before for the exact same device) but a solution that works is to use the “Auto-Update” metadata set to True.

Zigbee binding vetoes autoupdate for some devices. Unfortunately if those devices fail to give timely updates to OH, openHAB Items then get out of step. If I remember right, the binding will eventually poll them and come right, but that might mean a long wait.

Thanks - what’s weird is that for the exact same bulb I didn’t need to do it until I re-paired it. Oh well, it works. :slight_smile:

Old thread exploring Zigbee/polling/autoupdate issues, also with “identical” devices performing differently, and linking to a found cause.

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Thanks @rossko57 for the follow up with this old thread … makes much more sense!