When you declare your “Arrangements” custom post type, be sure to add ‘author’ and ‘breadcrumbs’ as parameters to the “supports” array. For example, it might look something like:
$supports = array(
'title',
'author',
'breadcrumbs',
'editor',
'excerpt',
'thumbnail',
'comments',
'custom-fields',
'revisions',
);
$labels = array(
'name' => 'Arrangements',
'singular_name' => 'Arrangement',
'menu_name' => 'Arrangements admin menu'),
'name_admin_bar' => 'Arrangements add new on admin bar',
'add_new' => 'Add New Arrangement',
'add_new_item' => 'Add New Arrangement',
'new_item' => 'Add New Arrangement',
'edit_item' => 'Edit Arrangement',
'view_item' => 'View Arrangement',
'all_items' => 'All Arrangements',
'search_items' => 'Search Arrangements',
'parent_item_colon' => 'Parent Arrangement:',
'not_found' => 'No Arrangement Found',
'not_found_in_trash' => 'No Arrangements found in trash',
'filter_items_list' => 'Filter Arrangements',
'items_list_navigation' => 'Arrangements list navigation',
'items_list' => 'Arrangements list',
);
$args = array(
'labels' => $labels,
'supports' => $supports,
'public' => true,
'capability_type' => 'post',
'rewrite' => array( 'slug' => 'arrangements', 'with_front' => false ),
'menu_position' => 2,// or whatever
'menu_icon' => ( version_compare( $GLOBALS['wp_version'], '3.8', '>=' ) ) ? 'dashicons-admin-generic' : false ,// or whatever
'has_archive' => true,
);
register_post_type( 'arrangement', $args );
That should sort out the author section display issue. Hopefully it will address the breadcrumbs as well. If not, then as another user suggested, the Yoast breadcrumbs may involve additional complexity.
Reference: https://developer.wordpress.org/plugins/post-types/registering-custom-post-types/