Reply To: Help with hiding featured images from blog posts.

[Atelierbram]

In the.single.php of your theme maybe wrap one of those calls to the_post_thumbnail(); function in a div that is hidden.

<?php if ( has_post_thumbnail() ): ?>
 

.hidden {
  display: none !important;
}

Both of these thumbnails are not in the header, so I don’t really understand the conclusion that is in the premise of the question, but oh well …