Unable to launch xfdesktop

Issue Description

Can't launch xfdesktop, error:

(xfdesktop:4613): Gtk-ERROR **: 20:46:22.717: failed to add UI: The resource at ?/org/xfce/xfdesktop/monitor-candidates-chooser.glade? does not exist

I have to delete icons.screen0.yaml to launch desktop again.

Steps to Reproduce Issue

I don't know, it happened by using laptop internal screen with Intel GPU and changing X11 driver from modesetting to Intel. Can't quickly reproduce on clean config. However I can reproduce it on icons.screen0.yaml synthetic config file.

Expected Behavior

Desktop launches and keeps icon layout.

Environment & Versions

• OS distribution and version: Manjaro
• Overall Xfce version: 4.20
• xfdesktop version (git hash if not a release): 4.20.0
• Windowing system (X11/Wayland): X11
• GTK Theme: Matcha-dark-azul
• Icon Theme: Papirus-Dark
• UI Scale Factor: 100%