Yes, thank you.
Right now, I have a few org files in a folder that are all registered as org-agenda-files. When I go to my agenda, tasks from these files show up.
Many of these tasks have tags. In an old version of org mode, when I clicked on these tags, I was met with an agenda view of all tasks with the tag across all of my org agenda files. Now, however, clicking on the tag renders nothing but "No link found" in the minibuffer.
I deleted org 9 and, in reverting to Org 8, the functionality returned.
I greatly value the ability to click on a tag and see a list of all tasks with that tag. I know that I can accomplish the same through the agenda menu, but I like the speed and ease of clicking.
Does this sound like a bug? Or has that feature been phased out?