Lights turn on themselves after some time:
– Check the associations tab of your rgbw device in zwave. Maybe it’s linked to another device?
– Check all your blocky scenes, maybe one of them is triggering the device to go on again.
It’s very strange the color changes automatically.
Does it change only once, or it keeps on changing?
There must be some device or scene firing this action, it should never do this itself.
Check the 2 lines mentioned above, especially the associations.