[5.3] Unity ADS not working

I'm using this code:

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Advertisements;
3. public class UnityAdsExample : MonoBehaviour
4.      {
5.        public void ShowRewardedAd()
6.        {
7.          if (Advertisement.IsReady("rewardedVideoZone"))
8.          {
9.            var options = new ShowOptions { resultCallback = HandleShowResult };
10.            Advertisement.Show("rewardedVideoZone", options);
11.          }
12.        }
13.    
14.        private void HandleShowResult(ShowResult result)
15.        {
16.          switch (result)
17.          {
18.            case ShowResult.Finished:
19.              Debug.Log("The ad was successfully shown.");
20.              //
21.              // YOUR CODE TO REWARD THE GAMER
22.              // Give coins etc.
23.              break;
24.            case ShowResult.Skipped:
25.              Debug.Log("The ad was skipped before reaching the end.");
26.              break;
27.            case ShowResult.Failed:
28.              Debug.LogError("The ad failed to be shown.");
29.              break;
30.          }
31.        }
32.      }

In my button onClick event I refer to ShowRewardedAd() but nothing happens, in version 5.2 of unity this process worked like a charm, but not now.

Any solution?

PS: I tried in blank project too
PS 2: Platform - Android | Enable Test mode - On

 

Yes but for any reason wasn't active, problem solve now, thnks @rasmus-unity !

 

I have the same problem with Unity 5.3.3

 

I have a temporal solution, just use the old dashboard to add your game