masonry gallery manual sorting not working

Hey freehaan,

Thank you for the inquiry.

This is a known issue in the latest version of WordPress. You have to temporarily use this code in the functions.php file to fix the gallery sorting until version 5.9.1 is released.

function ava_custom_css_admin_mod() {
    echo '<style>
      .wp-core-ui .attachments:after {
          visibility: hidden;
          display: block;
          font-size: 0;
          content: " ";
          clear: both;
          height: 0;
      }
    </style>';
  }
  add_action('admin_head', 'ava_custom_css_admin_mod');

Best regards,
Ismael