Send Response to one Room does not work (Nestjs & Socketio)

Question

My goal is to emit to only one client by using the default room that is being created by socketIo.

The room id and client id match. I checked that by logging it. But if I execute it the server emit does not reach the client.

I got the following code.

SERVER:

export class BarGateway implements OnGatewayInit, OnGatewayConnection {
  @WebSocketServer() server: Server;

@SubscribeMessage('prodOrderedToServer')
  handleProdOrdered(client: Socket, payload: any): any {
    this.server
      .to(client.id)
      .emit('prodOrderedToClient', client.id, 'response');

    // this.server.emit('prodOrderedToClient');
  }

}

CLIENT

 io.on(PIC_ORDER_TO_CLIENT_EVENT, (payload: any) => {
      queryClient.invalidateQueries(RQ_LAST_ORDER_LIST);
    });

CONFIG

export const PIC_ORDER_TO_CLIENT_EVENT = 'prodOrderedToClient';

I have tried so many things and hope now that someone here can help me.