SUMMARY STEPS TO REPRODUCE 1. Turn on mouse keys (Mouse -> Keyboard Emulation) 2. Plug in an external keyboard OBSERVED RESULT Mouse keys only works on computer keyboard but not external keyboard. Mouse key will work if I disable and re-enable mouse keys while the keyboard is plugged in. EXPECTED RESULT Mouse keys should work on both my computer and my external keyboard SOFTWARE/OS VERSIONS Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5,12.7 KDE Frameworks Version: 5.44.0 Qt Version: 5.9.5 ADDITIONAL INFORMATION