5.0.2: Color wheel turns black when light is on

[agross]

Describe the bug

The RGB color wheel / selector turns black when the light is turned on.

To Reproduce
Steps to reproduce the behavior:

1. Turn on the light

Expected behavior
Color selector stays colorful.

Screenshots & Logfiles

Screen.Recording.2025-10-04.at.11.22.06.mov

Versions:

• Adapter version: 5.0.2
• Operating system: docker

[Garfonso]

Hm.. is it possible that you never set color to anything with this light? Or at least not during adapter runtime? I can sometimes see this, but does not always happen. So I need to find a clue. Maybe you can help.

I think color is "just" 0,0,0 -> black. Not sure why the control turns black in this case... of course 0,0,0 is not a very sane thing to set RGB to for a lamp that was turned on. Hm.

[Garfonso]

There were a few places where RGB arrays could be initialized to 0,0,0 in case of missing data. -> I changed those to 255,255,255. I could not reproduce this at all after this change. Maybe you can give the latest github version a try.

[agross]

Hm.. is it possible that you never set color to anything with this light?

The light is > 2 years old. I've used color with it. Even during the runtime of the adapter version in question.

With 5.0.1 the problem is not as pronounced. With 5.0.2 and 5.0.3 it's broken: I've never seen a color wheel with these adapter versions.

Maybe you can give the latest github version a try.

The latest GitHub version now shows a color wheel, but the "current color" indicator on the wheel does not show up unless set by a click on the color wheel. I set colors 100% of the time using scenes, which means I'll never see the "current color" indicator. The "current color" on the brightness slider appears to be set correctly, though.

Screen.Recording.2025-10-10.at.22.27.38.mov

[agross]

The current color indicator also does not change when I change the color by switching to a different scene (neither on the slider nor the wheel). Brightness works.