CPT Preview not working

I had (long ago) asked here about a CPT that was not allowing a post to be previewed.

I did find an answer at:

https://wpmudev.com/forums/topic/preview-option-doesnt-work-for-custom-post-types/

So, in:

$args = array(
        'label'               => __( 'Faqs', 'text_domain' ),
        'description'         => __( 'Faqs', 'text_domain' ),
        'labels'              => $labels,
        'hierarchical'        => false,
        'public'              => true,
		'publicly_queryable'  => true,
        'show_ui'             => true,
        'show_in_menu'        => true,
        'show_in_nav_menus'   => true,
        'show_in_admin_bar'   => true,
		'supports' => array(
		'title',
		'editor',
		'author',
		'thumbnail',
		'excerpt',
		'trackbacks',
		'custom-fields',
		'comments',
		'revisions',
		'page-attributes',
		'post-formats',
		),
		'taxonomies' => array('faq_category','post_tag'),
		'update_count_callback' => '_update_post_term_count',		
        'menu_position'       => 5,
        'menu_icon'           => null,
        'can_export'          => true,
        'has_archive'         => true,
        'exclude_from_search' => false,
        'publicly_queryable'  => true,
        'capability_type'     => 'post',
		'query_var'          => 'qa_faqs',
        'rewrite'             => array('slug' => 'faqs'),
    );

just remove one line:

'post-formats',

and the preview works!

Is there a better work around?