https://bugs.kde.org/show_bug.cgi?id=451797
--- Comment #2 from SP <scp.stj...@gmail.com> --- (In reply to Ismael Asensio from comment #1) > Thanks for your bug report! > > Can you try running "kcmshell5 kcm_kwinrules" and also opening it from the > application menu (Alt+F3 -> More options -> Open specific window properties) > to see it the error persist there? This may help debugging the issue. "kcmshell5 kcm_kwinrules" Result: QObject::startTimer: Timers can only be used with threads started with QThread kf.coreaddons: "Could not load plugin from kcm_kwinrules: The shared library was not found." Error loading the module "kcm_kwinrules" : invalid KPackage Popup: Window Rules - System Settings Module / Window Rules "Error Loading QML file. Invalid KPackage 'kcm_kwinrules'" Alt F3 More Actions/Configure Special Window Settings - or - More Actions/Configure Special Application Settings produces the same Popup -- You are receiving this mail because: You are watching all bug changes.