landscape becomes black after setting material

[anonymous_user_f12363f01 (anonymous_user_f12363f0)]

I am creating empty project without starter content. (though I add it manually later)
After creation I create new landspace with section size (31x31), section per component(2x2), number of components(10, 10)

Then I create new material LandscapeMaterial.

But when I set it as landscape material - the landscape becomes black.

What is the problem?

[Rexuyo]

See Unreal Engine Issues and Bug Tracker (UE-39257)