I am trying to insert a chart on a dashboard, using a report as the data source. However, when I select the report it does not allow me to select the data range I want (it defaults to select the entire report).  What's more, it won't even let me click on the "OK" button! See screen shot:
    
        
             
    
I have even tried adding a report that already exists in a chart widget on another dashboard to a new chart widget in my new dashboard, but Smartsheet won't allow me. It won't even let me edit an existing chart widget's data range! (i.e. a chart I had previously added to another dashboard.) 
I've tried clearing my browser cache, tried using both Firefox and Chrome, and even rebooted my laptop. Nope, still doesn't work. 
Am I doing something wrong?