Apple Tv Leaderboard shows "No Data Available"

I am creating iOS and tvOs game. I have created a game in iTunes Connect and added a leaderboard in it. I am using Unity 5.5.0f3 personal and Xcode 8.2.1. Leader board and game center is working fine in iOS. But, in tvOS,

Social.ShowLeaderboardUI ();

shows No Data Available screen :( .

Notes: 1) Report score is working fine in both iOS and tvOS.

2) Leaderboard is working fine in iOS.

3) Game center is logging fine in both iOS and tvOS.

4) I have added New Apple Tv Leaderboard in Images.xassets and initialized Leaderboard Identifier.

I have been stuck in this for the whole day. Any help would be appreciated.

Thanks in Advance....