Lights are not part of the scene graph. They ANNOTATE the scene graph.
This is why LightNode is so confusing because all it’s doing is providing a position to a light… which is precisely what the LightControl will do. (This is why I think LightNode should be deprecated.)
So of course removing LightNode will not remove it’s light that has been annotated around the scene graph. a) how could it? b) that’s a totally separate thing from what LightNode is doing: just setting the position of the light.