LZW31-SN Not updating LED after zwave command to do so

[kreene1987]

The current firmware does not have the ability to reflect dimmed state of smart bulbs. It can only reflect the state of the switch dimmer itself.

It does sound like (per other threads) this featureset might be being worked on:

LZW31-SN Internal Relay Disable - What's the point?

More than happy to help with my input. Like, what does the LED display if there are 3 bulbs attached and one is at 33%, one at 45%, and one at 99%? I would look for the “mean” of all bulbs, so (33+45+99)/3 = 59 How does z-wave switch know what the level is for a zigbee bulb or a wifi bulb? What if the bulbs aren’t even attached to this load, but it is just being used as a scene controller? This I can see as being a challenge, but you should only be worried about functionality of z-wave …

Edit: It is also NOT recommended to dim the switch level on a smart bulb, but you can send the level of the bar through a command. I use ST so in Webcore I send setColor HSL (Hue, Saturation (no effect), Level)