Symptom: Move starts, destination is created, source is renamed, sometimes folders are created on the destination, but then files are not copied, the event stays pending with an increasing try count. Error message in pending events is usually 10: An OS function has failed. If you look in the agent log files you will see an entry with BackupRead dwError = 58, Result = 10.
There is a hot fix for this problem on Windows Server 2008 R2, but as of yet, we have not seen one for Windows 2012. The hot fix is built in to the latest support packs of Windows Server 2008 R2, so you may not even need the hot fix. Article
Work-around: Right now, the best work around for this (until there is a patch for Windows 2012) is to use an agent on either Windows 2008 or Windows 2008 R2 (with the patch) to act as proxy for the Windows 2012 server to move the data from any Windows 2008 servers to any Windows 2012 servers. To do this you will need to de-authorize the FSF agent on the 2012 server.
This should not be a problem if you do not have any servers older than Windows 2008 R2.