I am using Kubuntu 18.04 with KDE Plasma 5.12.6. When I add some custom shortcut keys from the settings, they work for a 1-2 minutes then suddenly stop. Just nothing happens. Then I have to go back to settings and reapply them but again - they work just for a while. Is there a way to fix this bug?
I made these shortcut keys:
ctrl+alt+backspace to run command
ctrl+alt+t to run command
Edit: I think I found what is the reason. Suddenly some apps disappear from the system tray in the panel. And then I am unable to use the custom shortcuts. When I add new panel or restart the plasmashell they are working again. Strange.