Urls not responding - Django

I have a problem with my urlsen Django, here my urls.py:

from .views import (
    CouponListView, CouponDetailView, buy_coupon, UserCouponListView, CouponOfResaleCreateView,
    CouponOfResaleListView,
) 

from django.urls import path, include

coupons_patterns = ([
    path('', CouponListView.as_view(), name = 'list'),
    path('<slug:slug>/', UserCouponListView.as_view(), name = 'user'),
    path('<int:pk>/<slug:slug>/', CouponDetailView.as_view(), name = 'detail'),
    path('coupon/<int:pk>/buy-<slug:slug>/', buy_coupon, name = 'buy-coupon'),

    path('resale/', include([
        path('', CouponOfResaleListView.as_view(), name = 'resale_list'),
        path('create/<int:pk>/<slug:slug>/', CouponOfResaleCreateView.as_view(), name = 'create'),
    ])),

], 'coupons')

The ones urlsthat don't work or don't respond are these:

path('resale/', include([
        path('', CouponOfResaleListView.as_view(), name = 'resale_list'),
        path('create/<int:pk>/<slug:slug>/', CouponOfResaleCreateView.as_view(), name = 'create'),
])),

I don't get an error, they just don't respond, that is, if I want to access one of the urlsones that I showed previously, for example, resale_listinstead of showing me what it should show me, it shows me the result of accessing the url user.

In the urlbrowser is the urlcorrectly but it shows me the HTML of another url, which in this case is the url user.

The way to fix it is to move that portion on urlstop, as follows:

coupons_patterns = ([
    path('resale/', include([
        path('', CouponOfResaleListView.as_view(), name = 'resale_list'),
        path('create/<int:pk>/<slug:slug>/', CouponOfResaleCreateView.as_view(), name = 'create'),
    ])),

    path('', CouponListView.as_view(), name = 'list'),
    path('<int:pk>/<slug:slug>/', CouponDetailView.as_view(), name = 'detail'),
    path('coupon/<int:pk>/buy-<slug:slug>/', buy_coupon, name = 'buy-coupon'),
    path('<slug:slug>/', UserCouponListView.as_view(), name = 'user'),

], 'coupons')

Another solution is to move the url userbelow said portion of urls, as follows:

coupons_patterns = ([
    path('', CouponListView.as_view(), name = 'list'),
    path('<int:pk>/<slug:slug>/', CouponDetailView.as_view(), name = 'detail'),
    path('coupon/<int:pk>/buy-<slug:slug>/', buy_coupon, name = 'buy-coupon'),

    path('resale/', include([
        path('', CouponOfResaleListView.as_view(), name = 'resale_list'),
        path('create/<int:pk>/<slug:slug>/', CouponOfResaleCreateView.as_view(), name = 'create'),
    ])),

    path('<slug:slug>/', UserCouponListView.as_view(), name = 'user'),

], 'coupons')

But why does this happen? Because depending on the order of the urlscauses this problem to happen?

Any solution? Since I don't like to have my files urlsin that order for them to work.