Comment 16 for bug 1875717

So clearly the problem here is with Thunar and PCManFM-Qt, at least something about how they handle the Samba connection that makes LibreOffice (and only LibreOffice, apparently) unhappy.

So I have three thoughts:

 1. Connect to the Samba share manually. This way we're not relying on the logic in the file manager to do the mounting. Assuming this works correctly for all file managers, then we can safely put the blame on the file managers themselves even though there must be something about LibreOffice that makes it particular. https://help.ubuntu.com/community/Samba/SambaClientGuide#Connecting_using_CIFS

 2. Run the file manager on the command line and see if it spits anything out. I know with PCManFM-Qt, it also handles desktop management, so there's a daemon running. You can find that and kill it and then run `pcmanfm-qt --profile=lxqt 2>&1`. I'm less intimately familiar with Thunar so I'll leave it as an exercise to the reader to figure that out. :)