SUMMARY

The "Wallpaper" settings (German localization: "Hintergrundbild") no longer works in the system settings after the upgrade to 6.1


STEPS TO REPRODUCE
1. Open the system settings
2. Click on "Wallpaper" (? "Hintergrundbild" in German)

OBSERVED RESULT

The following error message is displayed

Error when loading QML file: 

qrc:/kcm/kcm_wallpaper/main.qml:104 Type NewStuff.Button unavailable
qrc:/qt/qml/org/kde/newstuff/Button.qml:90 Type NewStuff.Dialog unavailable
qrc:/qt/qml/org/kde/newstuff/Dialog.qml:104 Type NewStuff.DialogContent unavailable
qrc:/qt/qml/org/kde/newstuff/DialogContent.qml:55 Type NewStuff.Page unavailable
qrc:/qt/qml/org/kde/newstuff/Page.qml:133 Type Kirigami.InlineMessage unavailable
file:///usr/lib64/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_57*" as the former is neither the same as the latter nor a sub-class of it.

EXPECTED RESULT

The configuration page for the desktop wallpaper should be shown. 


SOFTWARE/OS VERSIONS

Operating System: Fedora Linux 40
KDE Plasma Version: 6.1.0
KDE Frameworks Version: 6.3.0
Qt Version: 6.7.1
Kernel Version: 6.9.4-200.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i7-7500U CPU @ 2.70GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 620
Manufacturer: LENOVO
System Version: ThinkPad T470s


ADDITIONAL INFORMATION

My desktop wallpaper is configured to show a slideshow of my own pictures with a customized directory. The change frequency was set to 4 hours. This still works though