No, this is strictly a BasicUI/sitemap issue. The slider is showing the Item has a state.
But just to verify you can put the Item on your sitemap as a Text Item . That should show the Dimmer value as a number as everything is defined above. If it works as a Text Item but not the slider that means there might be something wrong with the Slider control element.
THere probably still isn’t a way to get the percentage value shown next to a slider? Just using a different control isn’t really a solution from my point of view. I want to control my roller shutters with a slider to set them to the preferred percentage value, and not just have three buttons. For me, the slider is much more convinient than a setpoint.
Also, it would be great if the percentage value was updated/shown while sliding the slider, but I guess that’s not going to happen?
EDIT: In the browser I can actually see the percentage, once it’s set. Not in the Android app though.