Version: (using KDE 4.3.4) OS: Linux Installed from: Ubuntu Packages After upgrading from 4.3.2 to 4.3.4 I've experienced empty taskbar entries. The icon is from an application I've worked with earlier. The taskbar entry stays. One time the entry disappeared but later it showed itself again.I can't remember if I had used the application depicted by the icon again. I'm not able to find the app that the icon depicts in the process list of running programs.
Created attachment 38870 [details] screenshot. empty taskbar entry with kate icon
*** This bug has been marked as a duplicate of bug 202199 ***