libgdx - How do I properly load maps?

I'm trying to load my map properly, but it takes some time (after the games has been started) to be how it should. Am I doing something wrong? Why is this happening?

AndroidStudio:

Tiled (map editor):

public class GameScreen extends Screen{
   private TmxMapLoader maploader;
   private TiledMap map;
   private OrthogonalTiledMapRenderer renderer;

   public GameScreen(Game game){
      maploader = new TmxMapLoader();
      map = maploader.load("level1.tmx");
      renderer = new OrthogonalTiledMapRenderer(map, 1);