I have two Sengled Element Color Plus bulbs in a group, using the same driver for both, Sengled Element Color Plus.
When I turn on Enable Zigbee group messaging, I have problems turning on both bulbs. If I disable Zigbee group messaging, the bulbs turn on and off, but with a popcorn effect. I have disabled on/off optimization.
What can I do to get both bulbs to turn on/off at the same time?