it maybe some filter formatting issue,
if you can replicate this issue and post the dashboard, i can take a deeper look.
If you save, close, and reopen the workbook then the highlighting will be cleared. But, it looks like it's not un-clearing when you click on it. Sorry, this is annoying. We'll look into it more.
Product Manager, Tableau
Thanks very much Amy, the highlighting cleared when I closed and re-opened the file as you suggested.
Although FYI, the highlighting does return if you click on the quickfilter text and it behaves the same as before and won't clear.
So I'll just be careful not to click there.
Evan Situ I did try altering the legend formatting so the background matched the highlight color, but as soon as I got a match the highlight color changed!
Thanks for you help guys.