Update: Devon's response got me closer, but I'm still a tad short of the finish line. I'm able to get the drill report to pop up, but can't get it to show quite what I want it to yet. In this particular example I'm wanting to click on say the green block on IT Core Operations and that show the Priority 5 tickets for IT Core Operations, however the closest I can get it is show priority 5 tickets for all the pillars rather than just IT Core. I've tried all of the different options under the "Filters" section with no luck. And it's the same on the table and the chart.
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Is it possible to have a drill down on a stacked column chart? We're working on a Divisional Overview dashboard for our leadership team that pulls in high level metrics for different areas such as financials, labor, projects, operations, etc. One of the charts we have is a stacked column chart seen in the first screenshot that shows ticket volume by priority for each of our pillar domains. I have created a report to use for a drill down that will show some of the ticket details for whichever area you click on, and I've set it as the drill for the chart as shown in the second screenshot. However, after setting it up and saving, when I try to click on one of the columns, nothing happens. I can recreate the same basic information in a table and have it drill down, which makes me wonder if there's just some fundamental disconnect with stacked column charts and drill downs.
Chart:

Drilldown:
