I set up a simple report that is just a list of a couple of dimension values. Something like follows.
I put this report into a dashboard and then I set up a dashboard filter action to filter all the reports on the dashboard on selection. It works great and unlike the quickfilters, it doesn't have to refresh it's data set every time something changes on the dashboard. This provides a performance boost.
I then published the report to Tableau server and the server seemed to immediately flatten the dimensions into one single row, so that no single value was legible or really selectable. No clue why it did that.
How do I force server to show the distinct values instead of flattening them?