I don’t use UEFN (nothing against it I just don’t want to) and with an update they posted a month or two ago they seem to have broken the fog.
For some reason the fog spawns almost 100 meters away and the only thing it does even slightly close to the player is change the ambient light for some reason.
Honestly the ambient light is the least of my concerns I just need the fog to work as it is a large part of how my game is balanced.
It could very well just be a bug but if it isn’t and I’m doing something wrong I would like to know.