Crashes when launched with the runtime option "-l /computer"

When launched with the option "-l /computer" it crashes with the message "(gcompris:15840): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion '!gtk_widget_get_mapped (GTK_WIDGET (window))' failed"

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gcompris 13.11-1
ProcVersionSignature: Ubuntu 3.13.0-27.50-generic 3.13.11
Uname: Linux 3.13.0-27-generic i686
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: i386
CurrentDesktop: Unity
Date: Mon Jun 9 16:15:07 2014
InstallationDate: Installed on 2014-05-28 (12 days ago)
InstallationMedia: Edubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140417)
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gcompris
UpgradeStatus: No upgrade log present (probably fresh install)