Laravel 5.5 Auth status in session is lost after redirect to custom url (instead of home)

I have a fresh Laravel 5.5 LTS project and I've published the auth feature using php artisan make:auth and tested it, it was all working fine. I.e. after successful register/login, I've got the status in session showing the message.

By default, after successful register/login, it redirects you to /home but I wanted a different route; i.e. /account - so I made the following controller:

app/Http/Controllers/Account/HomeController.php

<?php

namespace App\Http\Controllers\Account;

use App\Http\Controllers\Controller;

class HomeController extends Controller
{
    /**
     * Show the account home page.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        return view('account.home');
    }
}

and Created the following resources/views/account/home.blade.php view with:

@extends('layouts.master')

@section('content')

    @if (session('status'))
        <div class="alert alert-success">
            {{ session('status') }}
        </div>
    @endif

    <!-- Inner Wrapper Start -->
    <section class="inner-wrapper call-back small-section">
        <div class="container">
            <p>Welcome to My Account page</p>
        </div>
    </section>
    <!-- Inner Wrapper End -->

@endsection

and updated the routes/web.php like this:

// Authentication routes
Auth::routes();

// Account routes
Route::group(['prefix' => 'account', 'namespace' => 'Account', 'middleware' => 'auth'], function()
{
    Route::get('/', 'HomeController@index')->name('home');
});

and finally updated app/Http/Controllers/Auth/LoginController.php with the new direct url:

protected $redirectTo = '/account';

Now when I register or login within my app, it's correctly redirecting me to /account url, but I am no longer getting the status from the session - as if it's getting lost.

Any idea what might be wrong?