Exponential Height Fog multiple Scene Capture 2D targets weird behavior

Hello!
I am working on video in Unreal Engine 5. Recreating 360 camera from 5 scene captures and projecting them on sphere, then capturing inside of sphere by camera. I am doing postprocessing only on final camera so every screen space effect works correctly.
But Exponential Height Fog is looking different on some captures, it seems like it adjusts itself by exposure of each camera.
But i thought that Exponential Height Fog is not screenspace effect so have no idea what it can cause. Im adding two screenshot where you can see the problem.
Does anybody have idea what can cause this non uniform behavior?
Thank you!
Have a nice day,
Michal