In this case, there is an issue somewhere and you should identify and fix it. Working around that, adding new options etc. increases the complexity of the whole setup. You need the core function (data sync) to work reliably.
Normally you synchronise stuff via clients. If they don’t show errors all the time or create conflicts, I suppose that it works. The logfile can be insteresting as well, if there are a lot of serious errors, you probably want to know.
yes in most cases i don’t have any errors with the desktop client apps (Windows, Linux)
But i am using external folders → mounted as NFS Shares
So it could happen that someone uploads a file not via Nextcloud Client or WebUI but directly to the NFS Server. Not only in this case but sometimes Nextcloud don’t synchronize properly those files coming via another upload procedure than NC itself.
Never the less my problem seems to be an old one as i can see here
and also here
The mtime “bug” also has impact on the Activities that normaly show latest activity by date from new → old
I will have to investigate more on github and NC Forum here …