2 issues with Facebook Sharing in Window Phone

Hello folks, I use TakeScreenShot() function (it’s in the InteractiveConsole example in FB SDK for Unity) to take a screenshot and post it to FB. But there are 2 problems appeared:

How can I fix these problems ? Thank you.

Here is the code of TakeScreenShot() function

private IEnumerator TakeScreenshot() {
       yield return new WaitForEndOfFrame();
       var width = Screen.width;
       var height = Screen.height;
       var tex = new Texture2D(width, height, TextureFormat.RGB24, false);
       // Read screen contents into the texture
       tex.ReadPixels(new Rect(0, 0, width, height), 0, 0);
       byte[] screenshot = tex.EncodeToPNG();
       var wwwForm = new WWWForm();
       wwwForm.AddBinaryData("image", screenshot, "InteractiveConsole.png");
       wwwForm.AddField("message", "herp derp.  I did a thing!  Did I do this right?");
       FB.API("me/photos", Facebook.HttpMethod.POST, Callback, wwwForm);

how do you call your function? you need to StartCoroutine() for the yield to work. (that’s my best guess for why your screenshot is gray)
about the private picture in fb - i noticed that when you do this from unity’s editor the picture is published with “only me” privacy settings, but when you actually do it from a device (android here) it’s fine. also if you were playing with your app maybe your account has a high privacy setting already saved for it although you changed it at some point. go to your settings → apps and remove the app’s record from your profile then try again.

Dear Brave, the problem is not related to Chillsters SDK, actually is a Bug on some Windows Phones that will eventually get fixed. See here:
The reason you are the only one seeing your posts is because you app is still being developed on Facebook, you need to get approved by Facebook (publish_actions) and then go live.
By the way, you will never get approved by Facebook by harcoding messages on the post like “herp derp”, you need to allow the user to edit what is being posted.