I’m using zigbee2mqtt and a blue series switch that has a group binding. The group binding has 3 local bulbs and 1 remote (not on same circuit as switch) bulb. Technically where the bulbs are located should not matter for the binding but just figured I’d be verbose.
I have the switch on smart bulb mode to give constant power to the 3 local circuit bulbs.
When binding the group to the switch, it does say it was successful.
When I turn the group on/off in the zigbee2mqtt gui, the lights turn on/off just fine.
When I try to use the blue series switch to turn them on/off, nothing happens.
I was having the same problem, but this did the trick, thank you!
FYI that the written instructions (How To's | Setup Zigbee Binding - Home Assistant (Zigbee2MQTT)) are for ZHA so aren’t updated yet for Z2M; and while the video there does show this step, I overlooked it (the video adds like 9 lights to the group, so I stopped paying attention…showing 2 or 3 lights would be sufficient to get the point across), but that’s my fault.