Warning message when saving files on local disk

[GColl]

Hi
I’m suddenly getting this warning when saving files on local disk:

Document has been changed by others
The file has been changed since it was opened for editing in LibreOffice. Saving your version of the document will overwrite changes made by others.
Do you want to save anyway?

I didnt get this message the last time i saved the files (last night but only a few hours ago, it’s very early in the morning right now)
I don’t have an internet connection on my laptop so this is very strange and indeed a bit worrying. It seems to affect all open documents simultaneously. It has happened before but very intermittently and when it does happen it always affects all open documents simultaneously, whether writer or calc. (I always have quite a few documments open at once).
It doesnt seem likely, but is it possible that the documents really have been altered by someone else? How can i find out?l

Im using LO 7.6.2.1 on Windows 10

[Wanderer]

@GColl

very early in the morning right now

This night for some of us summer–time ended…

[NotSven]

Had the same - just not so early in the morning guess that it has to do with summer-time-end.

[iplaw67]

I regularly have the same issue on macOS, so it isn’t the change of summer time. It is also really annoying. I’m on macOS Arm. It started a few versions ago with the move to 24.x.x and is continuing with 25.x.x.

By any chance, are your files being synched to a cloud storage? This is the only thing I can think of, as my locally stored files are automatically backed up to my Google Workspace via a corresponding client application.