When running the code below for Qt 6.9.2 under Windows 10/11, the non-native file dialog fails to show the icons for some of the directories it lists. On the two systems I tested, it did not show icon for the "C:/Users" directory and others.

When running this code compiled for Qt 6.9.1, the file dialogs do show all the directory icons.

Code below is also attached.

#include <QString>
#include <QFileDialog>

#include <QApplication>

int main(int argc, char *argv[])

{ // initial directory   static const QString dir

;

  QApplication app(argc,argv);

  // non-native file dialog at root of system drive
  QFileDialog filedialog(nullptr,"test",dir);
  filedialog.setOption(QFileDialog::DontUseNativeDialog);
  filedialog.setViewMode(QFileDialog::Detail);

  // note that the "Users" directory does not have an icon (unlike the other ones).
  // also within the "Users" directory, the directory for the current user also
  // does not have an icon.
  // besides these directories, there are more directories missing their icon
  // (also on other drives). it seems to only affect directories, not drives/files.
  filedialog.show();

  return QApplication::exec();
}