After installing Kubuntu 13.10, Muon updater doesn't find updates, when I open it and click on search updates, it continues to show "computer is updated" even if it appears in the tray bar the notification saying that updates are available, if I click on the notification it simply disappears and muon updater doesn't change. The only way to update system is by typing on terminal window sudo apt-get update && sudo apt-get upgrade. Thank you Reproducible: Always
I confirmed this bug ! Impossible to check new updates by updater
*** This bug has been marked as a duplicate of bug 326581 ***