Created attachment 115069 [details] screenshot Neon dev unstable here... start Wayland session search for "Touchpad" in the apps launcher and open it. Window is too small as you can see in my screenshot.
QML KCM characteristically opening too short. *** This bug has been marked as a duplicate of bug 398820 ***
Fixed with Bug 398820! *** This bug has been marked as a duplicate of bug 398820 ***
Created attachment 120400 [details] screen recording on neon dev unstable This bug is back. Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.16.80 KDE Frameworks Version: 5.59.0 Qt Version: 5.12.0
The general problem has now been solved; any remaining size issues are not the fault of the KCMs themselves. Moving accordingly.
*** Bug 420743 has been marked as a duplicate of this bug. ***
https://phabricator.kde.org/D29157 makes this bug irrelevant.