Check the privacy settings on Pig&Dragon App.
When you log into Facebook, you should see "Apps" on the left hand side
Hover your mouse over it and you will see "more" appear. Click on more.
You should see Pig&Dragon app in the list with a gear next to it.
Click on the gear and a list will appear. Click on "Edit Settings"
Under there, there is settings for "Visibility of App".
Change 'Only me' to "Friends"