Unable instantiate the AgoraRtcEngineKit in Xamarin.iOS (Project: FormsAndSample) - Getting null value with AgoraRtcEngineKit.SharedEngineWithAppIdAndDelegate

[amittapelly11]

Getting null value when using AgoraRtcEngineKit.SharedEngineWithAppIdAndDelegate(agoraAPI, _agoraDelegate); in StartSession method of AgoraServiceImplementation.cs - Xamarin.iOS (Project: FormsAndSample - Folder - FormsWithNativeNugets) . Because of this I could not able instantiate the video session.

Note: I'm using https://console.agora.io/ to generate the temp token.
VS 2019 Version - 16.9.6
Xamarin ios and Xamarin.Mac sdk - 14.16.0.5
Xamarin sdk version - 16.9.000.294
Xamarin.Forms version - 5.0.0.2012
Xamarin.Agora.Full.iOS - 3.4.2
iPhone 62 & ios Version - 13.4.1

The same AppID, Token and room are working fine in Android.