Error with archive backup on Amazon AWS after upgrade to 6.2.1

Question

Hi, 
 after updating our Rapid Recovery from 6.1.x to 6.2.1 i have problems with the backup to Amazon AWS. 
 Actually we have the following installation: 
 
 hourly snapshots 
 daily backup to an archive on an external drive 
 daily backup of our archive to the cloud (Amazon AWS, S3) 
 
 It worked fine with version 6.1.x of Rapid Recovery. But after the upgrade to 6.2.1 i cannot upload to Amazon AWS anymore. 
 The snapshots and the drive-backup run fine on the system. But the AWS-backup brings an error with these details: 
 
 System.ArgumentNullException: Der Wert darf nicht NULL sein. Parameter name: source bei System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable 1 source, Func 2 predicate) bei Replay.Core.Implementation.Backup.Jobs.BackupJob.<>c DisplayClass132_0.b 0(BackupEpochItemInfo x) bei Replay.Common.Implementation.Utilities.CollectionAlgorithms.EnumerableExtensions.ForEach[T](IEnumerable 1 source, Action 1 action) bei Replay.Core.Implementation.Backup.Jobs.BackupJob.ExcludeAlreadyExportedImages(Dictionary`2 volumeImages) bei Replay.Core.Implementation.Backup.Jobs.BackupJob.SelectRequestedVolumeImages() bei Replay.Core.Implementation.Backup.Jobs.BackupJob.BackupTask() bei System.Threading.Tasks.Task.Execute() 
 I already deleted the archive job and the cloud account and made new ones. But the error still remains.No i have no more idea what i can do now. 
 I hope someone can help me with this. 
 And is it possible to downgrade to the older version of Rapid Recovery, in case that this is a bug? 
 
 Thanks in advance 
 Thomas

Tim Seymour · Accepted Answer

What S3 region are you uploading your data to? What recycle action are you using in the archive job? Are your recovery points in the repository encrypted with an encryption key? I know these sound like random questions but the error says the "value cannot be null" which means the software is looking for a piece of information and getting a null response which is invalid. Since you already recreated the cloud account and the archive job I doubt the issue is with those settings. So we have to identify what other possible values could be missing. This very well could be a defect. 
 We do not recommend downgrading Rapid Recovery. Is it possible? Yes. Does it come with a risk? Yes. 
 If you were to downgrade you should backup the registry branch HKLM/software/AppRecovery and then delete it. Then you will need to uninstall 6.2.1 (do not check the box to uninstall all settings and delete everything). Then you will need to install 6.1.3 and set the core up as if it was brand new but instead of creating a repository you could "open existing" and connect to your current one.

Error with archive backup on Amazon AWS after upgrade to 6.2.1

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