Help for real-time lighting

Saldations to all. I’m using real-time lighting on my first Unreal project - YouTube. I added the r.LightPropagationVolume = 1 Program Files (x86) \ Epic Games \ 4.14 \ Engine \ Config \ consolevariables.ini line. With Light source selected (Details), enabled - Light - Dynamic indirect lighting. In World settings - lightmass- enabled force on precomputer lighting
Once these settings are made, now my shadows are in real time and they are behaving well throughout the project, however, an unpleasant effect occurs when we move the camera away leaving black what should be white and staining light where it should be shaded, notice in the video . Can you help me with this problem?