I have two backups configured on my desktop Win 10 PC - one to a network share on another PC, the other to OneDrive, same set of source files for both backups. All of a sudden today the backup to OneDrive has started failing with the following message
Failed: An item with the same key has already been added. Details: System.ArgumentException: An item with the same key has already been added. at Duplicati.Library.Main.BackendManager.List() at Duplicati.Library.Main.Operation.FilelistProcessor.RemoteListAnalysis(BackendManager backend, Options options, LocalDatabase database, IBackendWriter log, String protectedfile) at Duplicati.Library.Main.Operation.FilelistProcessor.VerifyRemoteList(BackendManager backend, Options options, LocalDatabase database, IBackendWriter log, String protectedfile) at Duplicati.Library.Main.Operation.BackupHandler.PreBackupVerify(BackendManager backend, String protectedfile) at Duplicati.Library.Main.Operation.BackupHandler.Run(String sources, IFilter filter) at Duplicati.Library.Main.Controller.<>c__DisplayClass16_0.<Backup>b__0(BackupResults result) at Duplicati.Library.Main.Controller.RunAction[T](T result, String& paths, IFilter& filter, Action`1 method)
I’ve tried verifying files, deleting and repairing the database, all without any success. There is plenty of free space on the destination (~400GB). I uploaded a bugreport.zip file. Any ideas as to anything else I could try.
bugreport.zip (2.6 KB)