Guys, here’s a very recent twitch stream from Epic explaining how to get good lighting in ue4.
They talk about a lot of the problems we see everyday in this subforum, light leaks, quality settings, ini tweaks, etc…
Excellent link, thank you
Thank you for the link.
Going to make bit longer coffee break, and enjoy the video. 
Now 40% of questions in this forum can be answered with a link to that video and a time code 