This application went seriously downhill with Windows 10. Everysince last fall I have had nothing but issues with it. Uninstalled many times. A reinstalled older version was okay for a bit, then inevitably Adobe got an update through when I wasn't paying attention. It's the only thing on this machine (primarily an Adobe only workstation) that runs poorly. I have Version 8.1 installed on a Windows 7 machine (fortunately) and it runs super. Outruns 9.1 in the same folders on this Win 10 PC from ACROSS A NETWORK.
How do these comments relate to your concerns? Well my Bridge too often can't "find" anything (not to mention the find command) unless I drop the view menu and select "Show Items from Subfolders". Then it's fine . . . until I change folders.