SceneCapture does not affect postprocess

hi, i am working on create scenecapture affecting postprocessing.
if i set 'Final color (LDR) in RGB` to capture source, then post processing appear. but not registered component in scene capture is not rendering.

However, i set 'SceneColor (HDR) in RGB`, then post processing does not apeear, but all component is rendered in scene.

anyone have same problem?