What I'm simply trying to do is grab the featured image thumbnail image from a specified post/page and display that image on any other page somewhere.
So for instance, if it's a single post, use the thumbnail from post 9. If it's this page, use the thumbnail from 82, and so on.
It doesn't seem as simple as this:
$thumbnail_id = get_the_post_thumbnail(82);
Because I've tried that and it doesn't work in all scenarios.
Is there a universal way to do this?