I just narrowed this down further to my Custom Post Type in functions.php. Apparently it doesn’t like this?
add_action( 'init', 'register_cpt_feature' );
function register_cpt_feature() {
$labels = array(
'name' => _x( 'Features', 'feature' ),
'singular_name' => _x( 'Feature', 'feature' ),
'add_new' => _x( 'Add New', 'feature' ),
'add_new_item' => _x( 'Add New Feature', 'feature' ),
'edit_item' => _x( 'Edit Feature', 'feature' ),
'new_item' => _x( 'New Feature', 'feature' ),
'view_item' => _x( 'View Feature', 'feature' ),
'search_items' => _x( 'Search Features', 'feature' ),
'not_found' => _x( 'No features found', 'feature' ),
'not_found_in_trash' => _x( 'No features found in Trash', 'feature' ),
'parent_item_colon' => _x( 'Parent Feature:', 'feature' ),
'menu_name' => _x( 'Billboard', 'feature' ),
);
$args = array(
'labels' => $labels,
'hierarchical' => false,
'description' => '4-at-a-time Rotating Feature Billboard',
'supports' => array( 'title', 'thumbnail', 'page-attributes', 'custom-fields' ),
'taxonomies' => false,
'public' => true,
'show_ui' => true,
'show_in_menu' => true,
'menu_position' => 5,
'show_in_nav_menus' => true,
'publicly_queryable' => true,
'exclude_from_search' => true,
'has_archive' => false,
'query_var' => true,
'can_export' => true,
'rewrite' => false,
'capability_type' => 'page'
);
register_post_type( 'feature', $args );
}
I feel like the more I discover, the less I know.