I use Dropbox for collaborative work between Windows workstations. One of the use is to share LibreOffice documents. Concurrent editings are normally forbidden by LibreOffice by creating a lock file like : “.~lock.notes code.odt#” for the file “notes code.odt”. However, when I edit a file, I see this lock file locally, but not in the Dropbox web interface, and my coworkers do not see them in their own Dropbox.
I know this might be more dropbox than libreoffice related, but I would have like the feedback on libreoffice users on this issue, and if a solution exists.