https://support.microsoft.com/en-us/topic/kb3168708-fix-sql-server-managed-backup-to-windows-azure-tries-to-back-up-database-snapshots-in-sql-server-e19c8586-1c36-abc4-650e-93ee4ddff822
KB3168708 - FIX: SQL Server Managed Backup to Windows Azure tries to back up database snapshots in...
Fixes an issue in which SQL Server Managed Backup to Windows Azure tries to back up database snapshots in SQL Server 2014 SP1 or SP2.