Object ID Layer Rendering Include Niagara and FogLights (from a Blueprint) to the final render

Hey I tried using the 4.27. Object ID via Layer function. It renders the object it should on the RGB Plane but it also adds my dust particle from a foglight with a Spotlight and Material on Planes to it without no reason. Is there any Checkmark I can debug to show how I can dissable it?

It is definetely no on the Object Layer in the ID.