I have been having problems for a few days regarding access to routes defined for my middlewares. The specific problem with all this is that when, for example, I want to enter a URL of my entity other than Users, it always returns me to the home page, regardless of the user role that the logged-in user has. I leave important parts of the code here in case someone knows why it could be:

Model of Users:

<?php

namespace AppModels;

use IlluminateContractsAuthMustVerifyEmail;
use IlluminateFoundationAuthUser as Authenticatable;
use IlluminateNotificationsNotifiable;

class User extends Authenticatable
{
    use Notifiable;

    protected $fillable = [
        'name',
        'email',
        'password',
        'rol_usuario',
        'fecha_nacimiento',
        'sexo',
        'tarjeta_credito',
    ];

    protected $hidden = [
        'password',
    ];

    protected $casts = [
        'email_verified_at' => 'datetime',
    ];
}

Login function in UsuariosController:

public function login(Request $request)
    {
        $credentials = $request->only('email', 'password');

        if (Auth::attempt($credentials)) {
            Log::info('Inicio de sesión exitoso para el email: ' . $request->input('email'));
            return redirect()->route('home');
        }

        return back()->withErrors([
            'email' => 'Las credenciales son incorrectas.',
        ])->onlyInput('email');
    }

Middleware for administrators:

public function handle($request, Closure $next) : Response
    {
        if (!Auth::check()) {
            return redirect()->route('login.form')->withErrors('Debes iniciar sesión para acceder a esta página.');
        }
    
        if (Auth::user()->rol_usuario !== 'administrador') {
            return redirect()->route('home')->withErrors('No tienes permiso para acceder a esta página.');
        }

        return $next($request);
    }

web.php:

// Rutas de autenticación de usuarios
Route::get('login', [UsuariosController ::class, 'create'])->name('login');
Route::post('login', [UsuariosController::class, 'store']);
Route::post('logout', [UsuariosController::class, 'destroy'])->name('logout');
// Rutas para la gestión de carteras
Route::middleware(['auth', 'administrador'])->group(function () {
    Route::get('carteras', [CarteraController::class, 'index'])->name('carteras.index');
    Route::get('carteras/create', [CarteraController::class, 'create'])->name('carteras.create');
    Route::post('carteras/create', [CarteraController::class, 'store'])->name('carteras.store');
});

I have tried to introduce the user_role attribute to the $credentials variable but it does not take it in any way, for the urls of the Users entity I have no problem accessing it, but for Portfolio only the index of the methods created in its controller is accessible.