Widget Builder Display code can't be changed.

I have created a nivo-slider widget using http://help.percussion.com/widgets/widget-builder/creating-a-panel-slider-using-widget-builder

The captions don’t appear correctly, so I was experimenting to see what was wrong. But it seems that nothing I change makes any difference. I save the widget in the widget builder after I change it. Then I refresh the preview, but it does not change. I even tried deleting the widget and starting fresh, but still no change.

I believe that the text that is showing is what was in the original “display” code. But even if I change the “display” code it doesn’t change now. Even if I delete all the content from the “display” tab, it still works as if it were there.

Is there something else I need to do in order to change the “display” code?