[Error-Duplicati.Library.Main.Operation.TestHandler-Test results]: Verified 98 remote files with 1 problem(s)

Hi All

I have been using a Duplicati docker on my UnRAID server for several months and am very happy with it. I have a number of backup jobs which run periodically which seem fine… but a few months back, my daily backup started to report an error every time it backs up. The log shows;

[Error-Duplicati.Library.Main.Operation.TestHandler-Test results]: Verified 98 remote files with 1 problem(s)

However I have tested restoring some files from the ‘failed’ backups and have always managed to get a successful recovery… so I am confident it’s actually working.

So, is there anyone who can help with what this error actually is and how to remedy it? I was deliberating deleting the backup and data and starting again with a fresh backup, but would lose 28 versions of this backup and there is no guarantee it wont just happen again at some point.

I tried to upload a copy of the logfile in txt format but it is not an authorised format, but can paste into forum if this would help?

I am running Duplicati 2.3.0.4 - 2.3.0.4_stable_2026-07-09

Any advice on where to start would be greatly appreciated.