Well Martin the issue has been discussed a bit in another bug (looking for the number), even if the file is publicly available that doesn't work because gnome-desktop store your background in .cache which has permissions set to 700 by default so even if the image can be read the actual copy used and stored can't
Well Martin the issue has been discussed a bit in another bug (looking for the number), even if the file is publicly available that doesn't work because gnome-desktop store your background in .cache which has permissions set to 700 by default so even if the image can be read the actual copy used and stored can't