SUMMARY STEPS TO REPRODUCE 1. Open setting panel 2. Go to desktop effect 3. Settings doesn't show, we get an error page instead OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Linux/KDE Plasma: Neon with all updates as of June 19 with plasma 6.1 (available in About System) KDE Plasma Version: 6.1 KDE Frameworks Version: 6.3 Qt Version: 6.7 ADDITIONAL INFORMATION error I have : qrc:/kcm/kcm_kwin_effects/main.qml:24 Type NewStuff.Action unavailable qrc:/qt/qml/org/kde/newstuff/Action.qml:167 Type NewStuff.Page unavailable qrc:/qt/qml/org/kde/newstuff/Page.qml:133 Type Kirigami.InlineMessage unavailable file:///usr/lib/x86_64-linux-gnu/qt6/qml/org/kde/kirigami/InlineMessage.qml:63 Type KT.InlineMessage unavailable qrc:/qt/qml/org/kde/kirigami/templates/InlineMessage.qml:123 Cannot assign object of type "TP.IconPropertiesGroup" to property of type "IconPropertiesGroup_QMLTYPE_101*" as the former is neither the same as the latter nor a sub-class of it.
Can you try cleaning ~/.cache/kwin and ~/.cache/systemsettings ?
(In reply to Vlad Zahorodnii from comment #1) > Can you try cleaning ~/.cache/kwin and ~/.cache/systemsettings ? That solved the issue, thanks ! I only cleared the items in the 3 folders in ~/.cache/kwin, did a reboot, and I now see all the options. I didn't touched the folder systemsettings since I wanted to try 1 thing at a time. And to add some details, I did not touch anything in this setting panel before upgrading to plasma 6.1 Maybe the cleaning of this cache folder could be automated in a future update if you guys can reproduce my bug. This can be closed now, have a great day !
*** This bug has been marked as a duplicate of bug 487904 ***
*** This bug has been marked as a duplicate of bug 488965 ***