> I executed some tests. Please find below the results.
> *Samba Client: Ubuntu 18.04 LTS*
> So only the Files application copy the file correctly.
> Do you have any idea what I need to check on my client machine?
> > [...]
> > Hi Arnold,
> > can you try the same operations with Dolphin? Smb connections are
> > provided by
> > KIO-extras, while file operations comes from KIO. The "Files" file
> > manager comes from the Gnome suite and it is different in the
> > background.
> > Thanks
This year this bug was solved:
so you could try it with a new version of Ubuntu/Kubuntu/etc.