SUMMARY If make right click on the desktop, context menu appears, but if make the next sequence - left press, right press, left release, right release, right click doesn't work anymore until left click... STEPS TO REPRODUCE Left mouse press, right press, left release, right release OBSERVED RESULT Right click doesn't work anymore until left click EXPECTED RESULT On right mouse click context menu should appear SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: Kubuntu 18.04 (available in About System) KDE Plasma Version: 5.12.9 KDE Frameworks Version: 5.44.0 Qt Version: 5.9.5 ADDITIONAL INFORMATION
Fixed in a later version. Plasma 5.12 is quite old at this point and not all fixes can be backported.