box2lights rendering issue

Game.java

package com.thebnich.samplegame;

import box2dLight.PointLight;
import box2dLight.RayHandler;
import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.World;
import com.badlogic.gdx.utils.viewport.ExtendViewport;
import com.badlogic.gdx.utils.viewport.Viewport;

public class Game extends ApplicationAdapter {
    Viewport viewport = new ExtendViewport(32, 32);
    ShapeRenderer shapeRenderer;
    RayHandler rayHandler;

    @Override
    public void create () {
        shapeRenderer = new ShapeRenderer();
        World world = new World(Vector2.Zero, false);
        rayHandler = new RayHandler(world);

        PointLight light = new PointLight(rayHandler, 500);
        light.setPosition(16, 16);

        viewport.getCamera().position.set(16, 16, 0);
        viewport.getCamera().update();
    }

    @Override
    public void render () {
        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        shapeRenderer.setProjectionMatrix(viewport.getCamera().combined);
        shapeRenderer.begin(ShapeRenderer.ShapeType.Filled);
        shapeRenderer.setColor(Color.WHITE);
        shapeRenderer.rect(14, 14, 4, 4);
        shapeRenderer.end();

        rayHandler.setCombinedMatrix(viewport.getCamera().combined);
        rayHandler.updateAndRender();

        viewport.getCamera().rotate(0.5f, 0, 0, 1);
        viewport.getCamera().update();
    }

    @Override
    public void resize(int width, int height) {
        viewport.update(width, height);
    }
}