Musescore 3.4.2 on OpenSuse Leap 15.2: Palettes won't show up after update of operating system
I am on OpenSuse Leap 15.2 and worked during the last couple of weeks with the 4.0.git20200620 version provided by the OpenSuse community. Everything was working fine. A few days ago I wanted to add something to an existing score and realized that the palettes window was empty. I uninstalled the version and installed the official release version 3.4.2 from OpenSuse, but this did not help. I tried everything I found in forums and search engines (reset to factory settings, start from command line etc.) but the palettes won't show up. There is a button to add palettes, but clicking on it only brings up the empty drop-down menu without any palettes.
When I start MuseScore from the command line I get the following errors:
qrc:/qml/palettes/PaletteTree.qml:152: Error: Cannot assign to non-existent property "color"
qrc:/qml/palettes/PaletteTree.qml:193:19: QML Component: Cannot create delegate
qrc:/qml/palettes/PaletteTree.qml: Object or context destroyed during incubation
The appimage of version 3.4.2 from the MuseScore Website works fine on my system, but for several reasons I would like to stick with the OpenSuse version.
Is there somebody else experiencing this issue? Is there a fix for this?
Thanks in advance for your answers.