Description: Over the past few months I've had several (many) automatic Backup failures. Only recently, on a whim, did I try closing LO files before going to bed for the auto Backup. Since then, without fail, it has been successful. Except that, yesterday, on a whim, I manually started Backup with an open LO file running. Fail. If you're interested I will replicate a failure and give you Error notices. whatever. Basically, I remember "Failure to produce shadow copy" "timeout" "refer to VSS & SPP event logs" Steps to Reproduce: 1. see above 2. 3. Actual Results: see above Expected Results: see above Reproducible: Always User Profile Reset: No Additional Info: Although I've rated it as "minor" it's only minor once I realised the connection between LO and Backup. Getting to that realisation was pure chance!
Blame Windows for not being able to backup files that are opened exclusive by an application.
Indeed, it's strange that Windows (or any software) can't use special file open mode created specifically for backup purposes: note e.g. FILE_FLAG_BACKUP_SEMANTICS in CreateFile documentation [1]. However, it would be still be interesting to learn exact reproduction steps, and the logs; only one thing should be taken into account first. Recently, LibreOffice file locking had been changed (see tdf#141279), so it could change in the last program versions. [1] https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilew