Why nautilus quicklist is not working?

Question

None of my bookmarks (Documents, Pictures, Download, Dropbox, Ubuntu One, Music, Public) are correctly shown but they won't open if I right click on the Home icon and select them. The only ones who work are Home and Open A New Window.

I've read similar questions (unity home quicklist not working when nautilus is closed and unity home quicklist not working) but my problem seems different... Anyway I can't solve with the suggested workarounds.

$ ls ~
Audiobooks  Dropbox      Modelli              Pubblici    Video
Backup      dvdrip-data  Musica               Scaricati   VirtualBox VMs
deja-dup    grive        Pictures - GT-I9100  Scrivania   virtual-drives
Documenti   Immagini     Podcasts             Ubuntu One  Vuze Downloads


$ cat /usr/share/applications/nautilus.desktop

[Desktop Entry]
Name=Files
Comment=Access and organize files
Exec=nautilus %U
Icon=system-file-manager
Terminal=false
Type=Application
StartupNotify=true
OnlyShowIn=GNOME;Unity;
Categories=GNOME;GTK;Utility;Core;
MimeType=inode/directory;application/x-gnome-saved-search;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=nautilus
X-GNOME-Bugzilla-Component=general
X-GNOME-Bugzilla-Version=3.4.2
Actions=Window;
X-Ubuntu-Gettext-Domain=nautilus

[Desktop Action Window]
Name=Open a New Window
Exec=nautilus
OnlyShowIn=Unity;