Unity - Testing Facebook SDK Not Showing in Facebook

Question

I'm testing the example scenes that get added when adding the Facebook SDK to our Unity game.

Testing each of these methods succeed and return a post id, however, the post, photo and shared link never show up on my users Facebook page.

Our user is a normal Facebook account that has been invited as a Tester of our app.

The user has granted gaming_profile and gaming_user_picture permissions.

            if (this.Button("Share - Link"))
            {
                FB.ShareLink(new Uri("https://developers.facebook.com/"), callback: this.HandleResult);
            }

            // Note: Web dialog doesn't support photo urls.
            if (this.Button("Share - Link Photo"))
            {
                FB.ShareLink(
                    new Uri("https://developers.facebook.com/"),
                    "Link Share",
                    "Look I'm sharing a link",
                    new Uri("http://i.imgur.com/j4M7vCO.jpg"),
                    callback: this.HandleResult);
            }

            this.LabelAndTextField("Link", ref this.shareLink);
            this.LabelAndTextField("Title", ref this.shareTitle);
            this.LabelAndTextField("Description", ref this.shareDescription);
            this.LabelAndTextField("Image", ref this.shareImage);
            if (this.Button("Share - Custom"))
            {
                FB.ShareLink(
                    new Uri(this.shareLink),
                    this.shareTitle,
                    this.shareDescription,
                    new Uri(this.shareImage),
                    this.HandleResult);
            }

            GUI.enabled = enabled && (!Constants.IsEditor || (Constants.IsEditor && FB.IsLoggedIn));
            if (this.Button("Feed Share - No To"))
            {
                FB.FeedShare(
                    string.Empty,
                    new Uri("https://developers.facebook.com/"),
                    "Test Title",
                    "Test caption",
                    "Test Description",
                    new Uri("http://i.imgur.com/zkYlB.jpg"),
                    string.Empty,
                    this.HandleResult);
            }