title: Overlap charts in SSRS show just one chart area
body: <p>i'm following this <a href="http://www.angelsbiblog.com/2012/02/improve-data-visualization-in-your-ssrs.html" rel="nofollow noreferrer">Tutorial</a> to build a overlaped report, but no matters what i do, just one chart color has been showed, i cant make this style: <img src="https://i.stack.imgur.com/s1pjQ.png" alt="enter image description here">: </p>
  
  <p>Did someone had the same issue ?</p>
  
  <p>Thnks a lot. </p>