When choosing the custom menu file 'debian-menu.menu' from /var/lib/menu-xdg/menus/, the git versions of xfce4-panel don't show debian-menu applications. Only Help, Office and System Tools are shown with a mention 'No applications found'. No such issue with the released version 4.10.1, the whole Debian menu is shown.
Same issue when choosing kde4-applications.menu or gnome-applications.menu. Not all applications are shown and a mention 'no applications found' is displayed. No such issue with the released version 4.10.1, all apps are displayed.
I fixed this issue for my own use by patching the xfce4-panel-4.11 source, replacing ~/xfce4-panel-4.11.0/plugins/applicationsmenu by the ~/applicationsmenu of xfce4-panel-4.10.1 source. No compilation errors. All apps from the debian, gnome and kde menus are shown. ----- http://homepages.onsneteindhoven.nl/~wolput
Closing bugs as xfce4-menu-plugin is deprecated/unmaintained/merged into Panel since years.