I can reproduce this bug with the default xfce-applications.menu file shipped with Xubuntu. Attached is the offending .desktop file.
** Description changed: To reproduce: 1) Open MenuLibre - 2) Create a new launcher inside the System submenu; the launcher appears in the menu - 3) Add another categories for the launcher, eg. Game/Games - 4) Save the launcher - 5) Remove the System/System category - 6) Save the launcher + 2) Create a new launcher inside the System submenu + 3) Save the launcher (the launcher appears in the System submenu) + 4) Add another categories for the launcher, eg. Game/Games + 5) Save the launcher (the launcher appears in the Games submenu) + 6) Remove the System/System category + 7) Save the launcher Expected result: - System/System category is removed and launcher disappears from the System menu (and appears in the Games submenu) + System/System category is removed and launcher disappears from the System menu Actual result: System/System category reappears and launcher is still in the System menu (but not in the Games submenu) Running Xubuntu 14.04 with MenuLibre 2.0.3-1. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: menulibre 2.0.3-1 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu2 Architecture: amd64 CurrentDesktop: XFCE Date: Sat Apr 12 21:36:10 2014 InstallationDate: Installed on 2011-10-14 (910 days ago) InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) PackageArchitecture: all SourcePackage: menulibre UpgradeStatus: Upgraded to trusty on 2014-04-12 (0 days ago) ** Attachment added: "Offending .desktop file" https://bugs.launchpad.net/ubuntu/+source/menulibre/+bug/1307002/+attachment/4087701/+files/terminal-launcher-under-the-system-menu.desktop -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1307002 Title: Can't remove some categories from a launcher To manage notifications about this bug go to: https://bugs.launchpad.net/menulibre/+bug/1307002/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs