Hi Jan,
The issue is not with the drill down, it is the pivot table I am drilling to. Sorry, because I drill-down from a bar chart to this pivot table it made it sound like the issue was with the drill down from the barchart to the pivot table but it is not, the issue is how the pivot table is displaying once I drill to it. In the pivot table I have many fields (including date fields) in the 'ROW' section but no fields in the 'METRIC' section because I have no metrics. When I click on the bar chart and the pivot table is displayed, all of the date fields are bold hyperlinks allowing the user to click them and see a 'Sorry, we can't display this visualization' message.
Because the pivot table has no metric fields, the checkbox labeled 'Drill down' in the pivot table interactions section is checked by default but greyed out so I can't uncheck it. Joseph said I should add a field to the metric section so that the 'Drill down' check box will be accessible and I can 'uncheck' it. The problem of course is I have no metrics for this pivot table. Our product rep Nikos emailed me on Jan 6th and said the product team is fixing this as a bug. I believed this to mean after the fix I will be able to uncheck the 'drill down' checkbox even when there are no metrics. In the meantime I have redefined all my date fields to be strings so they display in the pivot table but are not bolded, it's a lot of extra work to redefine all the date fields.