SUMMARY *** NOTE: If you are reporting a crash, please try to attach a backtrace with debug symbols. See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports *** STEPS TO REPRODUCE 1. after DVB-T has been installed and all TV channels are present, view a channel. 2. double click on another channel to view it. 3. Kaffeine stop working. 4. have to reboot PC to stop kaffeine. OBSERVED RESULT Kaffeine stops working. no error message from Ubuntu. have to restart machine to close Kaffeine. EXPECTED RESULT should be able to change TV channels but can't SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Ubuntu 20.04.3 LTS (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION