Updated to 5.3, the 'web' route group isn't picking up middleware.

I just ran a Laravel Shift to go from 5.2 to 5.3. I'm having some problems with the routing. It seems like the 'web' group is not being applied to my routes in routes/web.php. To make it work I have to add the middleware classes to the middleware array. Furthermore if I include the SubstitueBindings class nothing work. I get a trying to get property of non-object error. If I comment out that class things seem to work fine.

Here is the code from my Http/Kernel.php

class Kernel extends HttpKernel
{

    /**
     * The application's global HTTP middleware stack.
     *
     * @var array
     */
    protected $middleware = [
        CheckForMaintenanceMode::class,
        EncryptCookies::class,
        AddQueuedCookiesToResponse::class,
        StartSession::class,
        ShareErrorsFromSession::class,
        VerifyCsrfToken::class,
        //SubstituteBindings::class,



    ];

    /**
     * The application's route middleware groups.
     *
     * @var array
     */
    protected $middlewareGroups = [
        'web' => [
//            EncryptCookies::class,
//            AddQueuedCookiesToResponse::class,
//            StartSession::class,
//            ShareErrorsFromSession::class,
//            VerifyCsrfToken::class,
//            SubstituteBindings::class,
        ],

        'api' => [
            'throttle:60,1',
            'bindings',
        ],
    ];

All of my routes are in /routes/web.php

Here is a copy of my RouteServiceProvider.

<?php

namespace Quickernotes\Providers;

use Illuminate\Support\Facades\Route;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;

class RouteServiceProvider extends ServiceProvider
{
    /**
     * This namespace is applied to your controller routes.
     *
     * In addition, it is set as the URL generator's root namespace.
     *
     * @var string
     */
    protected $namespace = 'Quickernotes\Http\Controllers';

    /**
     * Define your route model bindings, pattern filters, etc.
     *
     * @return void
     */
    public function boot()
    {
        //

        parent::boot();
    }

    /**
     * Define the routes for the application.
     *
     * @return void
     */
    public function map()
    {
        $this->mapApiRoutes();

        $this->mapWebRoutes();

        //
    }

    /**
     * Define the "web" routes for the application.
     *
     * These routes all receive session state, CSRF protection, etc.
     *
     * @return void
     */
    protected function mapWebRoutes()
    {
        Route::group([
            'middleware' => 'web',
            'namespace' => $this->namespace,
        ], function ($router) {
            require base_path('routes/web.php');
        });
    }
    /**
     * Define the "api" routes for the application.
     *
     * These routes are typically stateless.
     *
     * @return void
     */
    protected function mapApiRoutes()
    {
        Route::group([
            'middleware' => 'api',
            'namespace' => $this->namespace,
            'prefix' => 'api',
        ], function ($router) {
            require base_path('routes/api.php');
        });
    }
}

The code that is commented out is just me trying to troubleshoot. The app only works if the middleware is applied to the $middleware array and is not touched from the $middlewareGroups array.