I have this code in JSFiddle. What I'm doing is using FindTask to create a grid, and at the same time highlight the results on the map (purple circle). When the mouse is hovering over one of the points, I display a table showing information on the point. When I make a selection in the grid, I then highlight that specific point in dark blue. Now, the problem is when I want to hover the mouse over any of the points, I get the following error : 'Error: Unable to get property 'PARCELID' of undefined or null reference'. Not exactly sure how to resolve this.