Sorry to piggyback off this thread, but I cannot create a new one.
I’m having the same problem. I’ve tried everything in this thread (and others). No image shows up on the front end.
Here’s what I have:
<?php $attachment_id = get_field('book_cover');
$size = "thumbnail"; // (thumbnail, medium, large, full or custom size) wp_get_attachment_image( $attachment_id, $size );
I have tried image object, url, and ID in the settings, but I still get nothing.