missing icons in dropdown-menus of KDE-Programs (e.g. k3b, frescobaldi)

I switched on the option "Menus have icons" in the "gnome-tweak-tool" and the same option in "systemsettings" for KDE. In KDE-Programs, like Frescobaldi or K3B, many of the icons in the dropdown-menus are still missing. If I switch of the global menu by removing appmenu-qt, everything works fine and no icons are missing in the dropdown-menus.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: appmenu-qt 0.2.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-13.21-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
Date: Fri Oct 28 15:10:38 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: appmenu-qt
UpgradeStatus: No upgrade log present (probably fresh install)