title: Featured Image & Custom Fields not showing in Wordpress Custom Post Type (CPT)
body: <p>In my Wordpress back-end, under my Custom Post Type for &quot;Business&quot;, I want to enable the Featured Image and Custom-Fields in my &quot;Screen Options&quot;, however, there is no option there. See screenshot:
  <a href="https://i.stack.imgur.com/mZZyI.png" rel="nofollow noreferrer">Screen Options in Add New Post for Custom Post Type &quot;Business&quot;</a></p>
  <p>I am using the <a href="https://github.com/understrap/understrap" rel="nofollow noreferrer">Understrap</a> framework, building a custom theme using the <a href="https://github.com/understrap/understrap-child" rel="nofollow noreferrer">Understrap child theme</a>.</p>
  <pre><code>function custom_post_business() {
      $args = array(
          'public' =&gt; true,
          'has_archive' =&gt; true,
          'description' =&gt; 'Local Businesses for use in the Business Directory',
          'support' =&gt; array('title', 'editor', 'thumbnail', 'custom-fields', 'revisions'),
          'menu_icon' =&gt; 'dashicons-store',
          'labels' =&gt; array(
                  'name' =&gt; 'Businesses',
                  'singular_name' =&gt; 'Business',
          ),
      );
      register_post_type('businesses', $args);
  
  }
  add_theme_support('post-thumbnails', array('businesses'));
  add_action('init', 'custom_post_business');
  </code></pre>
  <ol>
  <li>I have tried adding the theme support, as suggested in almost ALL of the threads pertaining to this issue.</li>
  <li>I have tried disabling ALL plugins to see if there is a conflict.</li>
  <li>I am aware I can try using ACF or Carbon Fields plugin, but I would like to try to avoid plugins if possible. (I will be using Carbon Fields if I cannot find a fix.)</li>
  </ol>
  <p>Thanks in advance!</p>