WordPress get_the_post_thumbnail - get the custom size image?
<p>I have set the featured image/ thumbnail to 600x530 in my functions.php:</p>

<pre><code>if (function_exists('add_theme_support')) {
    add_theme_support('post-thumbnails');
    set_post_thumbnail_size(600, 530, true); // default Post Thumbnail dimensions (cropped)
}
</code></pre>

<p>But I can't retrieve that size via:</p>

<pre><code>echo get_the_post_thumbnail($post-&gt;ID, array(600, 530), array('class' =&gt; 'img-responsive'));
</code></pre>

<p>The image I always get is <strong>169x300</strong> or the <strong>large un-cropped original size</strong>. But I want <strong>600x530</strong>.</p>

<p>Any ideas?</p>