if you have a suite with a high amount of tests and only one ore very less of them are failing (also the other way around has the same problem but is not so critical) the failed tests are displayed only with a very small percentage in the bar chart. Some browsers (combined with the screen solution) cannot render it correctly. Nevertheless, a failed test could be critical and should be displayed in a way that nobody can miss it. A minimum width/percentage for the failing part of the bar chart would help to display it.