Unexpected OnConnect behaviour

[loothood]

Hi!
First of all, thank you very much for your projects. I mean serverme, packme and connectme. Very helpful.
On the servers side, I'm using serveme, on a client-side - connectme
I'm trying to get onConnect event and give a client id based on this action. So, I'm trying:
client:

import 'package:connectme/connectme.dart';

Future<void> createTestClient() async {
  final ConnectMeClient client =
      await ConnectMe.connect('ws://127.0.0.1:31337');

  //client.send('Hello!');
  client.listen<String>((String message) async {
    print('[CLIENT]: server says: "$message"');
  });
}

Future<void> main() async {
  await createTestClient();
}

server:

import 'package:serveme/serveme.dart';

Future<void> main() async {
  final ServeMe<ServeMeClient> server = ServeMe<ServeMeClient>(
    modules: <String, Module<ServeMeClient>>{
      'mymodule': MyModule(),
    },
  );
  await server.run();
}

class MyModule extends Module<ServeMeClient> {
  int clientNumber = 0;

  @override
  Future<void> init() async {
    server.log(
        'Module initialized'); 
  }

  @override
  void run() {
    server.listen<String>((String message, ServeMeClient client) async {
      log('Got a message: $message');
      client.send(message + '!!!!');
    });

    events.listen<ConnectEvent<ServeMeClient>>(
        (ConnectEvent<ServeMeClient> event) async {
      log('A new client with id: $clientNumber', MAGENTA);
      event.client.send('id:$clientNumber');
      clientNumber++;
    });
  }

  @override
  Future<void> dispose() async {
    server.log('Module disposed');
  }
}

Running server and client. And... nothing happened!
But, If I uncomment line //client.send('Hello!'); on the client side, everything works well.
So, I'm a bit confused about why I have to send some message from the client side to a server to initiate on events.listen<ConnectEvent<ServeMeClient>> event listener?

[loothood]

That's strange, but everything works now.