No response from SmartThings and I’m honestly not sure if their is a way to correct this in the current app with a device handler update. I have tried every possible fix that I can think of. Even if we do get the children to update while you are changing them in the app, child devices still aren’t supported by the new Alexa / Google Home integration. We will still pursue this route though of course.
In the meantime I have created a solution that will solve both the issues mentioned above. It requires the use of a SmartApp that creates two virtual devices and keeps them in sync with the physical device. It is actually a modified version of an app that I created 4 years ago because SmartThings didn’t have child / component devices yet. I feel like I’m taking a step backwards doing things this way, but it is the only alternative that I can think of right now.
This is intended to be a stop-gap solution until proper component / child device support is implemented in the new app and in the Google Home / Alexa integration, but it should work really well right now (as long as I worked out all the bugs). If interested, give it a shot and let me know. Here is a post that I just put out about it: