I have the Lancelot Launcher plasmoid on my KDE desktop, the problem is that sometime I can edit the KDE application launcher to remove an application but Lancelot continues showing the app in its menu. The way Lancelot is supposed to work is that it's always supposed to mirror what the KDE application launcher shows (right?). I've looked in the lancelot configuration and there's no obvious control to make it update to pull in edits to the application launcher.
I would think it would update to remove the obsolete application. Does it only update when KDE is restarted?
UPDATE: I logged out of KDE and relogged in and the removed application entry was then also removed from Lancelot. That's not the greatest (having it only sync up upon login) but better than nothing.