I don't think it has to do something with Nautilus. If you have one INSTANCE of LibreOffice application opened, the second one will cause this menu problem. In my case, it always happens because LO QuickLauncher runs in the background.
I don't think it has to do something with Nautilus. If you have one INSTANCE of LibreOffice application opened, the second one will cause this menu problem. In my case, it always happens because LO QuickLauncher runs in the background.