I am logging in user as virtual user to Sitecore. For some reason default wallpaper for user is blue screen instead of default Sitecore field image. if I update wallpaper manually via dialog it save value somewhere and show correct wallpaper even for next login.
I tried this code. It works for common Sitecore user but does not work virtual user.
How can I setup wallpaper for virtual user? (Sitecore 8.2)