WP 3.5 Custom pages not saving custom templates

I’ve created custom post-types in my functions.php when I go to the page and add new, I have the “page template” dropdown which gives me a choice to pick from for that page. But when I select it and save it returns to default template. Not sure how to fix this, I’ve tried optimizing and reparing my DB as I read somewhere else, but nothing doing.

register_post_type( 'mypage', array(
		'labels' => array(
			'name_admin_bar' => _x( 'Mypage', 'add new on admin bar' ),
			'name' => __( 'Mypage' ),
		),
		'public' => true,
		'publicly_queryable' => true,
		'capability_type' => 'page',
		'map_meta_cap' => true,
		'hierarchical' => true,
		'rewrite' => true,
		'query_var' => true,
		'has_archive' => true,
		//'delete_with_user' => true,
		'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ),
	) );