I have enabled "Restore previous session" in the "Session Management" so the applications I had open at shutdown will get started again after login. If an application was minimized, it will get started minimized again, however it can't get maximized again. If the taskbar entry is klicked, it wil pop up and immediatelly will minimize again. If this is done 2 or 3 times the taskbar will crash. The taskbar entry can be closed normally and new instances of the application work fine as well. Reproducible: Always Steps to Reproduce: 1. enable "Restore previous session" 2. minimize any application 3. log out 4. log in again
Can you provide a backtrace of the crash? See: http://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports Thanks.
nmind; backtrace will be against an old revision (replaced in 4.11) and i just tested the problem and it works in 4.11.