SUMMARY Systray icons in a vertical panel can't be clicked on anymore because the "Show hidden icons" arrow-button steals the click. STEPS TO REPRODUCE 1. Have a vertical panel 2. Add the systray widget 3. Try to click on a systray icon OBSERVED RESULT Instead of the icon receiving the click, the hidden icons panel will slide out.
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/386
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-workspace/-/merge_requests/388
Git commit 881db6a9dad12a16f9223b57704484bc7dd8f0dc by Konrad Materka. Committed on 25/10/2020 at 12:10. Pushed by kmaterka into branch 'master'. [applets/systemtray] Fixes for vertical and huge panel Few fixes for icon sizing, especially less common. like vertical panel and huge sizes. Related: bug 428127, bug 428198 FIXED-IN: 5.20.2 M +1 -0 applets/systemtray/container/package/contents/ui/main.qml M +20 -9 applets/systemtray/package/contents/ui/main.qml https://invent.kde.org/plasma/plasma-workspace/commit/881db6a9dad12a16f9223b57704484bc7dd8f0dc
Git commit 1f3b69087c9b4b1c9c3248b643907c480bcf8c6a by Konrad Materka. Committed on 25/10/2020 at 14:38. Pushed by kmaterka into branch 'Plasma/5.20'. [applets/systemtray] Fixes for vertical and huge panel Few fixes for icon sizing, especially less common. like vertical panel and huge sizes. Related: bug 428127, bug 428198 FIXED-IN: 5.20.2 M +1 -0 applets/systemtray/container/package/contents/ui/main.qml M +20 -9 applets/systemtray/package/contents/ui/main.qml https://invent.kde.org/plasma/plasma-workspace/commit/1f3b69087c9b4b1c9c3248b643907c480bcf8c6a
Confirmed as working now! Thank you Konrad!