This one has been driving me crazy since I got L10. I couldn't seem to import my master output settings using the "All Files" view from one project to another. I could save my channel strip in one song and then open those settings in the other but not via the side pain browser. I usually have my Output channel visible in the Tracks window, even though there isn't any automation on it. It's just a habit. I tried deleting it from the tracks window in one song AND THEN tried importing it into the new song and Boom, it worked! I don't remember L9 having this issue. Anyway, there ya go.