Hi there,
Featured images don’t display Captions or Descriptions by default.
If you want to add the Description below the single post featured image then add this PHP Snippet to your site:
add_action( 'post_thumbnail_html', 'db_auto_single_featured_description', 10 );
function db_auto_single_featured_description( $html ) {
$get_description = get_post(get_post_thumbnail_id())->post_content;
if ( is_single() && !empty($get_description) ){
$html .= '<div class="wp-caption">'. $get_description . '</div>';
}
return $html;
}
Adding PHP: https://docs.generatepress.com/article/adding-php/
Then a little CSS:
.featured-image .wp-caption {
line-height: 2em;
font-size: 0.8em;
text-align: left;
}