65338: Acronis Cyber Protect Cloud, Acronis Cyber Backup 12.5: File backup fails with "Incorrect function"

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Applies to:

Symptoms

File/folder backup containing encrypted files ends with the following warning:

Windows error: (0x80070001) Incorrect function

Example of full error log: click to expand

Error 0x6f: Failed to back up the file.

| trace level: warning
| channel: tol-activity#1CDDF0E0-EA6F-4EB8-82DE-A92D056647A0
| line: 0xe6c3e4557eacede9
| file: e:\368\products\imager\archive2_event_handler.cpp:376
| function: TrueImage::EncryptedFilesEventHandler::HandleEncryptedFileError
| Path: \\?\<path_to_the_file>
| $module: disk_bundle_vsa64_12830
|
| error 0x40019
| line: 0xa8a1022bd18ae206
| file: e:\368\core\file\windows\winnt_backup.cpp:644
| function: `anonymous-namespace'::EncryptedFileReader::ReadFrom
| Path: \\?\<path_to_the_file>
| Hints: 0x3
| $module: disk_bundle_vsa64_12830
|
| error 0x4000e: The operation is not supported.
| line: 0xa8a1022bd18ae206
| file: e:\368\core\file\windows\winnt_backup.cpp:644
| function: `anonymous-namespace'::EncryptedFileReader::ReadFrom
| function: ReadEncryptedFileRaw
| path: \\?\<path_to_the_file>
| $module: disk_bundle_vsa64_12830
|
| error 0xfff0: Incorrect function
| line: 0xbd28fdbd64edb8f1
| file: e:\368\core\common\error.cpp:307
| function: Common::Error::AddWindowsError
| code: 0x80070001
| $module: disk_bundle_vsa64_12830
Error 0x6f: Failed to back up the file.

| trace level: warning
| channel: tol-activity#1CDDF0E0-EA6F-4EB8-82DE-A92D056647A0
| line: 0xe6c3e4557eacede9
| file: e:\368\products\imager\archive2_event_handler.cpp:376
| function: TrueImage::EncryptedFilesEventHandler::HandleEncryptedFileError
| Path: \\?\<path_to_the_file>
| $module: disk_bundle_vsa64_12830
|
| error 0x40019
| line: 0xa8a1022bd18ae206
| file: e:\368\core\file\windows\winnt_backup.cpp:644
| function: `anonymous-namespace'::EncryptedFileReader::ReadFrom
| Path: \\?\<path_to_the_file>
| Hints: 0x3
| $module: disk_bundle_vsa64_12830
|
| error 0x4000e: The operation is not supported.
| line: 0xa8a1022bd18ae206
| file: e:\368\core\file\windows\winnt_backup.cpp:644
| function: `anonymous-namespace'::EncryptedFileReader::ReadFrom
| function: ReadEncryptedFileRaw
| path: \\?\<path_to_the_file>
| $module: disk_bundle_vsa64_12830
|
| error 0xfff0: Incorrect function
| line: 0xbd28fdbd64edb8f1
| file: e:\368\core\common\error.cpp:307
| function: Common::Error::AddWindowsError
| code: 0x80070001
| $module: disk_bundle_vsa64_12830

Cause

The file reports itself as Encrypted, however is not really encrypted. As a result using Microsoft Windows procedure to read encrypted data from file fails.

Solution

As a workaround, to avoid this warning exclude this file from your file backup: the file that causes the error can be found in error log after "path" (e.g. path: \\?\GLOBALROOT\Device\HarddiskVolumeShadowCopy8\data\document_01.docx )

You can still protect this file by running an image backup of the entire disk or volume.