The icons added to the quick start applet are only partially saved and reset after a restart.
I ran into this myself before finding this bug report. STEPS TO REPRODUCE 1. Add a Quick Launch widget to the desktop 2. Add one or more icons to it. The ones I added: - A shortcut .desktop file in ~/name.desktop (A Firefox profile launcher) - Two shortcuts to applications (Telegram, KWrite) 3. Reboot OBSERVED RESULT Telegram and KWrite are missing from the Quick Launcher The widget has only one icon, for Firefox. The icon is the "gear" rather than the Firefox icon. Clicking the icon does not launch Firefox. There is an error "The file or folder /home/tracey/Firefox Custom.desktop does not exist. " That is not the name of the desktop file EXPECTED RESULT All added icons are still in the task manager SOFTWARE/OS VERSIONS Operating System: Solus 4.5 KDE Plasma Version: 6.0.5 KDE Frameworks Version: 6.3.0 Qt Version: 6.7.1 Kernel Version: 6.8.12-293.current (64-bit) Graphics Platform: Wayland ADDITIONAL INFORMATION Related, I had also pinned Telegram to the task manager after launching it. After rebooting, the Telegram icon was no longer pinned. A Quick Launch widget that I had created months ago doesn't have this problem. The icons stay the same after rebooting. Due to other issues, I created a new Quick Launch panel, logged out of Plasma and logged back in. The panel had saved the icons properly. After a reboot, the icons were still present. It looks like there may be something about rebooting that's different than not logging out that causes the improper save. I will also note that a few of the times I saw the problem, I had to hard boot the system because of an nVidia driver problem causing SDDM to crash on wake after sleep.