Session in middleware don't working - laravel

Question

I'm storing a value in session in my middleware:
but when I refresh or go to new page the sessions is null.
what I do wrong?
class WorkflowContextMiddleware
{
/**
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector|mixed
*/
public function handle(Request $request, Closure $next)
{
$types = $request->input('types', []);
foreach ($types as $type => $context) {
$request->session()->put("somekey.contexts.{$type}", $context);
$request->session()->save();
}
return $next($request);
}
}
route:
Route::group([
'prefix' => LaravelLocalisation::setLocale(),
'middleware' => ['web','localise','localeSessionRedirect']
], function () {
Route::get('/', function() {
(new \Illuminate\Support\Debug\Dumper)->dump(\Session::get('somekey'));
});
});
route provider:
class RouteServiceProvider extends ServiceProvider
{
/**
* This namespace is applied to the controller routes in your routes file.
*
* In addition, it is set as the URL generator's root namespace.
*
* #var string
*/
protected $namespace = 'Arcanine\Http\Controllers';
/**
* Define your route model bindings, pattern filters, etc.
*
* #param \Illuminate\Routing\Router $router
* #return void
*/
public function boot(Router $router)
{
//
parent::boot($router);
}
/**
* Define the routes for the application.
*
* #param \Illuminate\Routing\Router $router
* #return void
*/
public function map(Router $router)
{
$router->group(['namespace' => $this->namespace], function ($router) {
require app_path('Http/routes.php');
});
}
}
Kernel.php
protected $middlewareGroups = [
'web' => [
\App\Http\Middleware\EncryptCookies::class,
\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
\Illuminate\Session\Middleware\StartSession::class,
\Illuminate\View\Middleware\ShareErrorsFromSession::class,
\App\Http\Middleware\VerifyCsrfToken::class,
\App\Workflow\Http\Middleware\WorkflowContextMiddleware::class,
],

Answer 1

In order for your session to work, wrap all your routes within:
Route::group(['middleware' => 'web'], function () {
...
});

Answer 2

Remove web middleware from route group if you're using 5.2.27 and higher.
The thing is all routes in web.php are already using web middleware and adding it manually will cause problems with sessions.