SUMMARY STEPS TO REPRODUCE 1. Go to system tray up arrow, right click on it, chose "Configure System Tray" 2. Set some entries to be displayed always or anything else and apply the changes OBSERVED RESULT Form now on, some system tray item can be accessed anymore, until the next restart. Those I use do as follows at click on them - classified by opening or not their popups: - working right: kmix, keyboard layout - not working at all: external devices, Wacom Tablet, network applet, clipboard applet - working sometimes: Kate sessions EXPECTED RESULT All working as designed. SOFTWARE/OS VERSIONS Windows: - MacOS: - Linux/KDE Plasma: Linux Sabayon 19 (available in About System) KDE Plasma Version: 5.14.4 KDE Frameworks Version: 5.53.0 Qt Version: 5.11.3 Kernel version: 4.18 ADDITIONAL INFORMATION
One more thing: when new items should be added, won't do it. For instance, running Q4Wine should add its entry to system tray, but can't be done until the next restart. Also entries list in the plasmoid configuration is empty until the next restart.
*** This bug has been marked as a duplicate of bug 393630 ***