I noticed yesterday on my new landscape, that as i moved around my landscape it changed. A little hill was as should have been when i was close to it, but went almost flat as i moved farther away.
I then made a new landscape, gave it more resolution and the problem was gone. But i then noticed that my landscape material moves as i move on the map. The problem seems to pop-up when the terrains height changes.
When i get farther, texture goes down. When i go closer, it goes up.
://i1292.photobucket/albums/b569/Nuutia/Unreal%20Engine%204/land_moving2_zpsspefzxdx.png