Just checking if this is currently expected behaviour, or if it's a bug that could be fixed. And if it is currently expected behaviour, could this be added to the list of fixes for the next version.
If I have a VDB grid that has an emissive portion, then set that grid to not be visible to camera, then the grid doesn't cast any light on other objects in the scene. I would assume like any other self illuminated object, light or object light material, then it should still be able to cast light when not visible to camera.