The dimmer is not in sync over multiple devices.
When dimming with the wall dimmer - only the first value gets updated. After refreshing the page the dimmer shows the correct state.
We couldn't reproduce this bug. We are using your environment (with the port forwarding) but opening two instances of the application seems to work.
Could you test it again and provide us more info?
The dimmer is not in sync over multiple devices. When dimming with the wall dimmer - only the first value gets updated. After refreshing the page the dimmer shows the correct state.