title: Strange behavior of Power BI line and column chart
body: <p>I have a simple data sheet containing 3 data rows.</p>
  <p><a href="https://i.stack.imgur.com/iXyiU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iXyiU.png" alt="enter image description here" /></a></p>
  <p>The Power BI &quot;Line and clustered column chart&quot; show it like this:</p>
  <p><a href="https://i.stack.imgur.com/FpLYg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/FpLYg.png" alt="enter image description here" /></a></p>
  <p>But once I changed the row 2 data to below:
  <a href="https://i.stack.imgur.com/VcyBb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/VcyBb.png" alt="enter image description here" /></a></p>
  <p>The visual suddenly changed to this.
  <a href="https://i.stack.imgur.com/KW0v7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KW0v7.png" alt="enter image description here" /></a></p>
  <p>The bar is showing correctly <code>0.98</code>. But the line drops to <code>0</code>. Why?</p>