problem with shadows. on the trees and grass there are black.

Hi,

I can brighten it by the skylight, but then interrior displayed very bright.
you can see it - YouTube

It seems that issue in the materials, but that can affect it?
for ex. wood bark Details (258 kb) закачан 10 октября 2016 г. Joxi

SOLVED - by enable global illumination for movable objects.

ConsoleVariables.ini and (re)start the engine:
r.LightPropagationVolume = 1

Enable Affect Dynamic Indirect Lighting on the Directional Light.