Hello there! Forgive me if this is a simple issue that's been covered before... I can't find answer as of yet though. My Kdenlive directory when I add new clip doesn't show external usb drive I have AVCHD clips on. I'm using a Mac. Any help would be appreciated. Thanks!

The QT framework is used to handle things like 'File->Open' screens. The code calls a QT function which paints the screen and returns the file that you select. You might try searching for issues relating to QT and the Mac in regards to File-Open screens and USB drives.