Created attachment 138109 [details] bug SUMMARY STEPS TO REPRODUCE 1. Install a SDDM theme; 2. In the middle of the installation prompt, close the System Settings window (don't close the password prompt dialog) OBSERVED RESULT System Settings doesn't open anymore unless systemsettings5 process is ended in KSysGuard. EXPECTED RESULT SOFTWARE/OS VERSIONS Operating System: Kubuntu 21.04 KDE Plasma Version: 5.21.4 KDE Frameworks Version: 5.80.0 Qt Version: 5.15.2 ADDITIONAL INFORMATION This problem also happens when installing icon packs from the repositories such as pocillo-icon-theme and papirus-icon-theme. I don't know if this is related.
Can confirm, yikes.
My guess is that there is a running KJob somewhere that prevents the app from closing completely
I just had this bug when installing an iconpack package via terminal. After killing the systemsettings5 process, I was able to relaunch System Settings with no problems.