[Zubersoft]

Sorry that you've been running into issues like that. Does the sync always stop on exactly the same song and/or file?  It would be great if we can isolate which song or file may be causing the problem. If not, then one option would be for me to get a copy of your library backup file (email a link to mike@zubersoft.com) so I can see if there is something specific to your library that is causing issues. How large is the library you are trying to sync to OneDrive? I'll also run some tests on my end to ensure nothing has changed recently in regards to the connection to OneDrive.

Thanks,
Mike