OnUnityAdsShowComplete handler not getting called in Unity editor

Hello Team, I have followed the Unity Ads guide here https://unityads.unity3d.com/help/unity/integration-guide-unity#basic-ads-implementation using Unity 2020.3.14f1 and Advertisements- 3.7.5 package. I am able to load and show Ads![alt text][1] in the Editor as above. But the OnUnityAdsShowComplete(), method doesn't get called.I tried clicking both SKIP and CLOSE in the Ad but OnUnityAdsShowComplete() is not getting called. Every other handler method is getting called except for this one. Can you'll please let me know if I am missing something ? Thanks [1]: /storage/temp/185674-ads.png