Now, if I make a selection and on this bar chart, for lets say, 31-50 Times, this works. I get this result:
Problem: if I make a selection on the pie chart, for lets say, 2018, the bar chart selection changes:
The bar chart selections removed the column for 31-50 Times and is providing two other columns instead. Instead, I would expect no columns shown on the bar chart because there are no longer any filenames in 2018 that were used 31-50 Times.
I understand why it's giving me these results - because it filtered for the "Filename" and not for "31-50 Times":