Meerkat Demo Global Illumination

Hey guys, I wonder if anyone here knew what is going on with the light bounces on meerkat demo project file.
I tried to turn off all objects except the environment folder, and it seem the environment had some orange light bounces even after turning off all the lights, I assume this is coming from the Skylight capture, but it doesn’t seem like that, because when I delete the skylight, the oranges still there. ( or I missed something here )

And then I tried to move one piece of rock up, and suddenly the orange was gone right after I move the object.

I might giving a silly question here since I’m quite new to Unreal.
My goal to move some objects without breaking this orange light bounces.
Any help would be really appreciated. Thank You!

have you tried rebuilding all with the skylight turned off (affects world unchecked)?
maybe its another actor that does some fake bounced light