Captureing sky by SceneCapture with composite mode

[5ubin]

in UE 5.2,

1. The actor material: It samples render target and bound to “Emissive Color”
   

   

2. SceneCapture2D Settings:
   CompositeMode: Composite
   CaptureScene: SceneColorHDRNoAlpha

3. RenderTarget Settings: Default.

I captured every frame with SceneCapture2D, it works well but the brightness of the sky increases more and more than before each frame.
I think that maybe the composite mode doesn’t consider the sky depth , so it just adds the sky color and affects to emissive color.

Is there some way to handle it?