I'm trying to update GUID on a attachment. But somehow it's not working neither it's throwing any error.
$my_post = array( 'ID' => 45, 'guid' => 'https://example.com/foo.png' ); wp_update_post( $my_post);
WordPress does not seem to update the GUID.
But if we try update other values such as
post_parent, it works fine.
Why is that?