In Final Cut Pro X 10.2.3 or later, when you set the "Add to playlist" destination setting to Library for the Master File or an Apple Devices share destination, then you share your project or clip, your file might not appear in iTunes. To make sure your media appears in your iTunes library, do the following:
- Open iTunes, then choose iTunes > Preferences > Advanced.
- Check the “Copy files to iTunes Media folder when adding to library” option.
- Share your Final Cut Pro X project or clip again.