Ordering custom post types - wordpress

Question

I'm registering a new custom post type like this:
function news_register() {
$labels = array(
'name' => _x('News', 'post type general name'),
'singular_name' => _x('News Item', 'post type singular name'),
'add_new' => _x('Add New News Article', 'resources item'),
'add_new_item' => __('Add New News Article'),
'edit_item' => __('Edit News Article'),
'new_item' => __('New News Article'),
'view_item' => __('View News Article'),
'search_items' => __('Search News Articles'),
'not_found' => __('Nothing found'),
'not_found_in_trash' => __('Nothing found in Trash'),
'parent_item_colon' => ''
);
$args = array(
'labels' => $labels,
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'query_var' => true,
'rewrite' => true,
'capability_type' => 'post',
'hierarchical' => false,
'menu_position' => 8,
'supports' => array('title','editor', 'excerpt', 'thumbnail', 'excerpt')
);
register_post_type( 'news' , $args );
}
add_action('init', 'news_register');
And I'm then trying to query those post types and order them by title using:
$news = new WP_Query(array(
'post_type' => 'news',
'orderby' => 'name',
'order' => 'DESC'
));
Or:
$args = array( 'post_type' => 'news', 'posts_per_page'=>5, 'orderby'=>'title','order'=>'ASC');
$news = new WP_Query( $args );
Neither of which order by the post title at all. The news posts are test articles that are called 'aaa', 'bbb' and 'ccc.
How can I change my query to get the posts by title order?
EDIT:
I have this code in functions, but removing it doesn't seem to change anything.
add_filter( 'pre_get_posts','change_my_post_order' );
function change_my_post_order( $query ) {
global $wp_query;
if ( is_category() ) {
$query->set( 'orderby', 'title' );
$query->set( 'order', 'asc' );
}
return $query;
}
Adding "'suppress_filters' => true," to the query doesn't seem to make any difference either.

Answer 1

Your pre_get_posts action is wrong. You should make sure that you only target the front end and only the main query. Your action should look like this
add_action( 'pre_get_posts','change_my_post_order' );
function change_my_post_order( $query ) {
if ( !is_admin() && $query->is_main_query() && $query->is_category() ) {
$query->set( 'orderby', 'title' );
$query->set( 'order', 'asc' );
}
}