How to solve this problem?
Have you confirmed that your lighting is set up correctly? I noticed you don’t have a sky light in your scene. It’s also possible that lighting needs to be rebuilt.
It’s Look Like You Did Not Paint This Landscape Yet …
If Painted Check Light Details Is visible box Checked Or Not. If Checked
Rebuild The Light.
Your Problem Will Solve.
Enjoy
I’ve got the same issue, I just installed 4.16 and opened my scene from 4.15, landscape is black. Tried rebuilding light, nothing, can’t figure out what is going on.