I have a problem with stacked bars. I am trying to create a Gantt chart of project phases based on this instruction: http://community.qlik.com/docs/DOC-3113. As you can see in the picture, the chart works ok in grouped but when I try to stack the bars only the green one is showing and the others disappear. Is it because the 'Delivery Month' doesn't have an end date and therefore zero values exist? Or could there be other reason for the disappearance? The end date is created of the 'Date' of next phase and the last phase doesn't have anything to create the end date from. Any idea how to fix the problem or do the chart using other methods?