Hello, Fabian Vogt. I have tried to do this upgrade in a virtual machine (to test first). Sadly I had no success, I have difficulties with how to do this "dup". Can you, please, tell me the particular steps? I do not want to break the entire KDE because I am doing something wrong. Can I add your fix as a new repository (and how)? Or how shall I do it? Thanky in advance.