Do you find any duplicates in .gtk-bookmarks in your home folder? (It's a hidden file, so you probably need to do Ctrl+H in Nautilus or do cat ~/.gtk-bookmarks in a terminal)
Do you find any duplicates in .gtk-bookmarks in your home folder? (It's a hidden file, so you probably need to do Ctrl+H in Nautilus or do cat ~/.gtk-bookmarks in a terminal)