[Plugin: Multiple Post Thumbnails] Display thumbnails outside loop

I got it Working outside the loop!

I used this code:

<?php
global $wp_query;
$thePostID = $wp_query->post->ID;
?>
<?php if (class_exists('MultiPostThumbnails')
					&& MultiPostThumbnails::has_post_thumbnail('page', 'header-interna', $thePostID)) :
					MultiPostThumbnails::the_post_thumbnail('page', 'header-interna', $thePostID, 'header-interna-post'); endif; ?>

In my case:

page = post type I desire
header-interna = new thumbnail I created with the plugin
header-interna-post = thumbnail size I created.

Thank you @brubrant for this…I’ve been looking for a few days and finally came across this thread. Here is what I was able to accomplish with your solution: https://www.ads-software.com/support/topic/plugin-multiple-post-thumbnails-secondary-thumbnail-not-showing