Missing title and description while sharing on facebook from unity - share

Question

I implemented Facebook Sharing dialog using basic FB.SharLink and FB.FeedShare in one a sample project. Now when I create a new Facebook Application for Live project and Integrated into My Live Unity Project, It stopped working as it is designed.
Steps : Create Facebook Application , Added Android product in it. Disabled the development mode and all other necessary basic setting about application info such as namespace, app domain & Website.
Issue : When I go for post to Facebook, it clears out title and description of written by my C# code and get some title and description from the website link, if it founds nothing from website , it sets website URL text as Content Title and Content Description.
Tweak : Now when I app App Id and App Name from Sample project to Live project and change Bundle Identifier Name and set it to sample project's bundle identifier name and then when I build my live project and test it and It worked actually. Now I am amazed how this could be happen ?
I am providing the same link such as www.google.com. It is working in Old Sample Project with it's Facebook application , but it is not working for live project and new Facebook Application.
Then I went to developers.facebook.com and check all the setting of both Facebook application. But all settings are same. Not a penny is different except from Facebook Application Id, Name & Secret Key.
Please help me on this.

Answer 1

Tested on facebook-unity-sdk-7.9.0 and Unity 5.6.0f3 (64-bit).
I created a sample code below. i tested this an it works.
it uses Facebook SDK... u just need to link ShareScreenShot to a button.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using Facebook.Unity;
using Facebook.Unity.Example;
using UnityEngine.UI;
public class FBShareScreenShotTest : MonoBehaviour {
public void ShareScreenShot(){
Debug.Log ("SHARE");
//ShareScoreOnFB();
FB.ShareLink(
new Uri("URL where you want to redirect the user"),
"Rebisco",
"Lets have a great adventure.",
new Uri("Image here URL "),
callback: ShareCallback);
}
private void ShareCallback (IShareResult result) {
if (result.Cancelled || !String.IsNullOrEmpty(result.Error)) {
Debug.Log("ShareLink Error: "+result.Error);
} else if (!String.IsNullOrEmpty(result.PostId)) {
// Print post identifier of the shared content
Debug.Log(result.PostId);
} else {
// Share succeeded without postID
Debug.Log("ShareLink success!");
}
}
}
Output
Output in facebook
You can check the source code here: https://github.com/casterfile/Unity-Facebook-Soscial-Share

Answer 2

I have got the solution of my problem. All it was the Android build hash key. I generate new Hash Key a have to set it up on Facebook application. and Rebuild the program and it worked.