Hey Eric
Character is the one that comes with UE4 First- Person, it does that same circular shadows if I switch the game mode to not using a character and just have the basic fly around, also I forgot to mention that the circular shadows are persistent when in editor mode and play mode.
Lighting is a Dominant Directional light and Skylight for overall lighting, with Spotlights pointing at white planes at every window (this was needed to compensate for UE4s broken indirect lighting and light bouncing), I used details from ArchViz / Lighting - Game Development - Unreal Engine Forums for setting up lighting, although I don’t use the modified lightmass.ini
Thanks
Dan