title: ag-grid is not rendering all my rows.
body: <p>I am scratching my head on this one but I am starting to think it may be a bug in ag-grid.</p>
  
  <p>I have a grid that is (inconsistently) only rendering 3 rows of data when I am expecting 5. There is a blank space for the 2 missing rows.</p>
  
  <p>The pager says 5 rows, and the grid seems to <em>know</em> there are 5 rows (when I step through the javascript debugger). In fact, if I sort on the grid, or resize the window such that the grid provides scrollbars, the other 2 rows suddenly appear.</p>
  
  <p>Has anyone seen anything like this?</p>
  
  <p>----More detail but may not be relevant:
  On this particular page, I have 2 grids. There is a main grid that has links in it, and when you click into a link, it hides the main grid and shows you the other grid. I was concerned that that was coming into play somehow, but I actually have seen this on another page I'm working on that has just 1 grid.</p>