Box2D dispose order?

Newbie & Debugging Questions
#1

Hello together,

at the moment i load a tiledmap(.tmx), create a world(com.badlogic.gdx.physics.box2d.World). Inside the world i render the shapes, like polygon or circle shape. After changing the map(.tmx), map will dispose and i want to recreate a new world.

  1. Is it needed to instantiate a complete new world?
  2. What is the correct dispose-order?

My dispose-order make some trouble with my player, he is the only one he wont dispose after changing map(.tmx).

  1. In my render method i will update at first world.step

mapMgr.getBox2dWorld().getWorld().step(1 / 60f, 6, 2);
  1. All bodies will dispose except the players body

for (int i = 0; i < bodies.size; i++) {
				mapMgr.getBox2dWorld().getWorld().destroyBody(bodies.get(i));
				Body body = bodies.get(i);
				body = null;
				
			}


 map.dispose();

 world = new World(new Vector2(0, 0), true);

But after this the new map is loaded correctly , shapes are rendered in the right way but my player isnt able to move and his circle shape is missing.

Thx for review this and your help.