DayCycle system built on SunSky / SkyAthmosphere / Exponential Height fog

Hi all.

Having an issue while building a day cycle system based on the SunSky actor (built for usage with Sky Atmosphere).

You can test all of this with manual parameters without a need for a cycle system.

At Night time, Even with proper settings for Volumetric Fog deriving colors from SkyAthmosphere, the scene is completely black and ramping up the value of the skylight has no effect what so ever.

This did not use to be true for prior versions.
Has anyone noticed/found a solution?

Bump and - for the moment I resorted to using a very low intensity secondary directional light that sort of acts like the moon. Not sure what to do when there isn’t supposed to be a visible moon though,.