Disable height fog shadows without affecting post processing quality level?

Hello! I am trying to disable the shadows that appear inside the Exponential Height Fog, but I can’t for the life of me figure it out. The only way I have found is to set the Post Processing quality to medium or lower, but then that affects my other effects that I want to have included. I am quite new to unreal and I’m sure this is some checkbox somewhere that I have missed, but I feel like I have looked everywhere, so I hope someone here can guide me to the right place. Thanks!!

EDIT: Just thought I should add that I have tried disabling “cast volumetric shadows”, and tried setting “volumetric scattering intensity” to 0 on my directional light, none of which do anything at all. So I guess it is possible that this is a bug.