Exporting is broken

Issue type

Import/export issue

Description with steps to reproduce

Using the AppImage export in any format.

Supporting files, videos and screenshots

11:53:28.232 | WARN | main_thread | Qt | qrc:/qml/Muse/UiComponents/StyledMenuLoader.qml:28:1: QML StyledMenuLoader: Created graphical object was not placed in the graphics scene.
11:53:29.098 | INFO | main_thread | ActionsDispatcher::doDispatch | try call action: file-export
11:53:30.715 | ERROR | main_thread | GuiApp::perform | error: qrc:/qml/Muse/Ui/internal/FileDialog.qml:25:1: QML FileDialog: Window.window does only support types deriving from Item

11:53:30.716 | WARN | main_thread | Qt | qrc:/qml/Muse/Ui/internal/FileDialog.qml:25:1: QML FileDialog: Window.window does only support types deriving from Item

In which versions of MuseScore Studio is this issue present?

4.6.5

Regression

I was unable to check

Operating system

Linuz -> Arch Linux -> Zenned

Additional context

• Being unable to export makes the app almost useless.
• The precompiled package is also broken too, due to a qt-6.11 bug.
• The Flatpak package works. But I don't want to use that, as nothing on my distro requires Flatpaks.
• But there is no way to make a working native package, either compiled from sourced or wrapped around the AppImage.

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

Reproduce exporting in any format with the AppImage on MuseScore Studio 4.6.5 and begin with the reported qrc:/qml/Muse/Ui/internal/FileDialog.qml warning. Compare the AppImage behavior with the working Flatpak and the supplied export logs; done means export works from the native package without the reported failure.