Hello, i have such a problem. My shadows are very black. can someone help me?? graphics setting are on maximum. sorry for my bad english. I Slovak and English language are now learning.
-what happens when you build your light?
-do you have a skylight in your level? 
hi Just wondering after building the skylight, is your scene should be bright or dark? I built a skylight in my level and it turns out that my level is still dark…I put the skylight inside a closed room in my level.