I’ve got the following happening again on one of my Windows server backups, source are C: drive files/folders, destination is a local disk used only for backups:
2026-05-27 18:38:13 +02 - [Error-Duplicati.Library.Main.Operation.BackupHandler-FatalError]: Fatal error
DatabaseInconsistencyException: Found inconsistency in the following files while validating database:
C:\ProgramData\BraveSoftware\BraveVpnService\Crashpad\metadata, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Intel\Logs\IntelCPHS.log, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\UpdateLock-308046B0AF4A39CB, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\1e7d2dc91f14a48_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\MicrosoftCorporationII.WinAppRuntime.Singleton_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\dbda3473e8dab9bc_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
... and 4293 more. Run repair to fix it.
2026-05-27 18:38:13 +02 - [Error-Duplicati.Library.Main.Controller-FailedOperation]: The operation Backup has failed
DatabaseInconsistencyException: Found inconsistency in the following files while validating database:
C:\ProgramData\BraveSoftware\BraveVpnService\Crashpad\metadata, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Intel\Logs\IntelCPHS.log, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\UpdateLock-308046B0AF4A39CB, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\1e7d2dc91f14a48_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\MicrosoftCorporationII.WinAppRuntime.Singleton_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\dbda3473e8dab9bc_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
... and 4293 more. Run repair to fix it.
A repair does this:
2026-05-27 18:44:57 +02 - [Error-Duplicati.Library.Main.Controller-FailedOperation]: The operation Repair has failed
DatabaseInconsistencyException: Found inconsistency in the following files while validating database:
C:\ProgramData\BraveSoftware\BraveVpnService\Crashpad\metadata, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Intel\Logs\IntelCPHS.log, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\UpdateLock-308046B0AF4A39CB, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\1e7d2dc91f14a48_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
C:\ProgramData\Packages\MicrosoftCorporationII.WinAppRuntime.Singleton_8wekyb3d8bbwe\S-1-5-21-3301197204-2781052952-692608797-500\SystemAppData\Helium\Cache\dbda3473e8dab9bc_COM15.dat.LOG2, actual size 0, dbsize 102400, blocksetid: 6486
... and 4293 more. Run repair to fix it.
A delete and repair seems to work but then the backup fails again with the original problem. I tried a purge-broke-files but it didn’t find anything to purge.
Any ideas?