Duplicate child name in GtkStack: Diff Menu

On system

> wsl --statusDefault Distribution: UbuntuDefault Version: 2WSL version: 0.58.3.0Kernel version: 5.10.102.1WSLg version: 1.0.33MSRDC version: 1.2.2924Direct3D version: 1.601.0Windows version: 10.0.22616.1

when nautilus is started (from command line) a continous list of these messages are shown:

(org.gnome.Nautilus:857): Gtk-WARNING **: 18:26:50.901: Duplicate child name in GtkStack: Diff Menu...

How do I solve that ?