I have a Homey Pro and have created a flow that will turn my three kitchen lamps on when on/off on the connected IKEA dimmer is pressed. It’s a very simple flow, but only the first bulb I paired are turning on and off. I’ve tried adding them as individual lamps instead of turning off the room, but no matter what I do it will only turn one bulb off.
I’ve even installed the Groups app and tried turning the group off, but it’s still only one lamp being affected.
When you trigger the flow manually, the dimmer button isn’t transmitting. Maybe the transmissions from the button are interfering with the communication with the lights? Have you tried the delays Dijker mentioned?
Could it be other flows accidentally linked to the same button are counteracting your commands? e.g., if you disable the flow, turn the lights on manually and press the button, do the lights go off?
Have you tried a flow that triggers on the button press and sends you a notification? It sounds like the button is directly connected with that one bulb, and not (correctly) with Homey.
Yup, I tried that to troubleshoot and it doesn’t send a notification.
I tried pairing a completely new Trådfri dimmer and that connects without problems and can control all three bulbs. I’ve reset the other Trådfri dimmer by pressing the link button 4 times, that should be enough, right?