Error Collision Landscape

I am creating a realistic scenario in unreal engine 4, I created a landscape in the world machine, and I imported it into the EU. So far so good, it worked out looked beautiful the way I wanted it, but when I play, nothing happens, the image only freezes
I even added land physics in the land, but it did not work. When I press the esc, it returns to the editing mode. Dai if I put it up and play, it gets normal, until he collides with the landscape

Here a video of “error”