Black desktop background instead of picture

I would like to set the following picture as desktop background, but Gnome 3.28.2 (Ubuntu 18.04.2 LTS) doesn't recognize it. The desktop background is black.

Output of the command ls -ld $HOME/Pictures:

drwxr-xr-x 3 ata ata 4096 Jul 14 20:59 /home/ata/Pictures

1 Answer

chmod +x $HOME/Pictures

Make sure that your Pictures folder is accessible by others.