I have run into this same problem for my Linux clients. Windows client works fine. My server is Ubuntu 16.04 running samba and nothing has been changed on it. My client is Linux mint 19. After upgrading to Libreoffice 6.2.3 from 6.1, I can no longer create a new file, though an existing file can be updated.
I have run into this same problem for my Linux clients. Windows client works fine. My server is Ubuntu 16.04 running samba and nothing has been changed on it. My client is Linux mint 19. After upgrading to Libreoffice 6.2.3 from 6.1, I can no longer create a new file, though an existing file can be updated.