title: Drupal drag-able blocks issue
body: <p>Druapl offers great functionality whereby blocks can be dragged up and down to reorder as shown below.<br /><br />
  <a href="http://citywest.bangtest.co.uk/with.png" rel="nofollow noreferrer">alt text http://citywest.bangtest.co.uk/with.png</a></p>
  
  <p>However, on a couple of projects I've been working on they have disappeared during development )as shown below) but I have no idea why! It must be something that I am doing wrong but for the life of me I can't work out why.<br /><br />
  <a href="http://citywest.bangtest.co.uk/without.png" rel="nofollow noreferrer">alt text http://citywest.bangtest.co.uk/without.png</a></p>