Cannot Install/Use Preflight Tool
Clicking the "Preflight" button in Print Production mode just produces a message saying:
"Preflight is getting installed. Please wait to use this tool."

The first time I did this a little icon showed up next to feedback, help etc. indicating that something was happening. Eventually this said there was an error and Acrobat installation would be retried.
Now, no such thing shows up. Seemingly nothing happens at all other than showing that message. It's been 30 minutes so I really doubt it's a matter of impatience.
I have tried repairing Acrobat installation, and uninstalling/reinstalling through the Creative Cloud app to no avail. Any ideas on how to install/launch the Preflight tool?
