tilemap chunk bug

setup_tilemap.rs

// During play this tilemap only renders one chunk.
fn setup_tilemap(
    entity: Entity,
    mut commands: Commands,
    asset_server: Res<AssetServer>,
    mut materials: ResMut<Assets<ColorMaterial>>,
    mut map_query: MapQuery,
) {
    let texture_handle = asset_server.load("textures/elevation_debug.png");
    let material_handle = materials.add(ColorMaterial::texture(texture_handle));

    let chunk_size = UVec2::new(16, 9);

    // Create map entity and component.
    let map_entity = commands.spawn().id();
    let mut map = Map::new(0u16, map_entity);

    // Create a new layer builder with a layer entity.
    let (mut layer_builder, _) = LayerBuilder::new(
        &mut commands,
        LayerSettings::new(
            realm_size.into(),
            chunk_size,
            Vec2::new(16., 16.),
            Vec2::new(192.0, 16.0),
        ),
        0u16,
        0u16,
        None,
    );
    layer_builder.set_all(TileBundle::default());

    let layer_entity = map_query.build_layer(&mut commands, layer_builder, material_handle);

    map.add_layer(&mut commands, 0u16, layer_entity);
    commands
        .entity(entity)
        .insert(map)
        .insert(Transform::default())
        .insert(GlobalTransform::default());
}