"Analysis Class" for Bar and Pie Charts default to Key Number - Bug

[OSchrock]

In the Bar Charts settings, I set the "Analysis Class" to "Word" and clicked "Use as Default." When I run a search and open one the bar chart, it shows the results for "Word" as expected. However, if I leave the bar chart open and run a second search, the chart updates to the new search but with the "Key Numbers" instead of "Word" results. If I close the bar chart and reopen it from the search bar, it shows "Word" again as expected.

The same is true for Pie Charts.