# Consistent Unexpected difference in fileset version

**URL:** https://forum.duplicati.com/t/consistent-unexpected-difference-in-fileset-version/7101
**Category:** Support
**Created:** [May 21, 2019, 8:45am UTC](https://forum.duplicati.com/t/consistent-unexpected-difference-in-fileset-version/7101 "2019-05-21T08:45:54Z")
**Posts on this page:** 1
**Showing post:** 38

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### Author: ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)
#### Post date: [May 20, 2020, 12:53am UTC](https://forum.duplicati.com/t/consistent-unexpected-difference-in-fileset-version/7101/38 "2020-05-20T00:53:24Z")

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Similar issues with some comments and troubleshooting ideas which the users didn’t clearly pursue:

[Need help, backup failing to B2 cloud](https://forum.duplicati.com/t/need-help-backup-failing-to-b2-cloud/7442) has an antivirus theory and a Process Monitor debugging idea.

[Backup error - sftp - put](https://forum.duplicati.com/t/backup-error-sftp-put/7436) has `SftpPermissionDeniedException` further down in all the stack traces.

The backend failure that I notice further down in all your stack traces is the following:

> System.Net.WebException: The remote server returned an error: (403) Forbidden

[Delete dlist file not found & exclude ~$ temporary files](https://forum.duplicati.com/t/delete-dlist-file-not-found-exclude-temporary-files/9768/5) was my history of odd Google Drive 403 errors.  
Generally such errors will be retried based on [–number-of-retries](https://duplicati.readthedocs.io/en/latest/06-advanced-options/#number-of-retries), but eventually retries might exhaust.  
Running a log at Retry level will detail each error, otherwise you might just see how the last one failed.

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