Hey there @Anonymous_f5ae1799aeee410c63cc8bb85b52e0f0! I wonder why the exposure is different based on direction. This technique was viable in UE4, though it does seem to have some issues now.
Disclaimer: One or more of these links are unaffiliated with Epic Games. Epic Games is not liable for anything that may occur outside of this Unreal Engine domain. Please exercise your best judgment when following links outside of the forums.
Does a post process + FOV setup work for your use case? (I’m assuming not since you went with the scene capture method).