[Zubersoft]

Without access to your library, I won't be able to say what is causing the issue. If you want to share a library backup with mike@zubersoft.com, I can try to reproduce the issue, but otherwise, try deleting that song and sync again. See if it completes successfully or encounters a different error. I do plan on adding a lot more logging with the sync feature to investigate these issues but I haven't had time to focus on this yet.

Mike