error "Stream end was reached before all files were processed"

[tinto1970]

hi all, I and my customer opened a case [07535399] because a Backup to Tape job has fired the error reported below
It has aborted the whole job. We are wokring with the support engineer to try understanding the possible cause. The backup copy chain was fresh, since we initiated these jobs few days ago.
The customer is concerned: What does it mean the error exactly? The whole backup chain is corrupted?

details about the configuration

-Unstructured Data Job "U" saves a NAS share to RepoA (linux XFS)
-Backup Copy Job copies the data from RepoA to RepoB (identical linux XFS machine)
-Backup To Tape vaults the data from RepoB to TapeLibraryB

we prefer to vault from RepoB because it's physically in the same building B of TapeLibraryB.
System administrator performed xfs file checks on the linux machines with no errors reported. The hw is new, well sized and dedicated (HPE Apollo, configured by HPE experts to be used with Veeam).


Task |parentfolder|folder1|folder2|Videos|SegmentSDI10001.mp4 completed with warning. Details: Stream end was reached before all files were processed.
Failed to backup Videos/SegmentSDI10001.mp4: Stream end was reached before all files were processed.
Incremental backup: Stream end was reached before all files were processed. Stream end was reached before all files were processed.
Incremental backup: The operation was canceled.
The operation was canceled.
Incremental backup: The operation was canceled.

[tinto1970]

the health check on the backup copy chain returned

Warning \\nas.xxxx.dom\f$ backup contains corrupted data which can only be removed as no copy of this data is available