After updating SourceTree to 1.9, I did something that causes my 'Working Copy' view to always display only a single file in diff mode. I can find no way to get it back to showing me my list of files. If I select to display 'pending', I see one pending file in diff mode. If I select all, I see one (different) file from among all the files.
I've tried refresh, reinstalling, and cloning a new project from bitbucket -- no change.
I even tried reverting to 1.8.1 -- same behavior with older diff view, then upgrading to 1.9 again. Nothing helps.