stream two event messages in one from gRPC Server

Question

I have a scenario where I am trying to send multiple messages in one and trying to stream the one message from the gRPC server to the gRPC client side.

My proto files on server side look like this:

Service Greeter{
rpc AccumulateEvents (EventRequest) returns (stream EventsMessage);
}
message EventsMessage{
    FirstEvent firstEvents =1;
    SecondEvents secondEvent = 2;
}

message EventRequest{
//sending empty request
}

The service method is as follows:

public override async Task AccumulateEvents(EventRequest eventRequest, IServerStreamWriter < EventsMessage > responseStream, ServerCallContext context) {
  IDisposable disposable4 = service.SubscribeToEvents(OnEvents);
  service.execute();
  await responseStream.WriteAsync(new EventsMessage {
    FirstEvent = firstEvent, SecondEvents = secondEvents
  });

}

When I am trying to fetch and parse the stream from the client side,i am getting null for secondEvent part of the message EventsMessage. Only firstEvents was returned from the server to the client. I tried debugging and could see secondEvent getting populated but then it became null when the streaming started from the server. Also, secondEvent is a repeated field. I am not sure if that is the reason of it becoming null.

Please let me know what i might be missing here.