Django view/app problem

This version works (so you can assume the models and templates work):

[first_project]

    [settings.py]

    INSTALLED_APPS = [
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'first_app',
        'help',
        'users',
    ]

    [urls.py]

    from django.contrib import admin
    from django.urls import path, include
    from first_app import views

    urlpatterns = [
        path('', views.index, name="index"),
        path('first_app/', include('first_app.urls')),
        path('users/', include('users.urls')),
        path('help/', include('help.urls')),
        path('admin/', admin.site.urls),
    ]


[first_app]

    [urls.py]

    from django.urls import path
    from . import views

    urlpatterns = [
        path('', views.index, name='index'),
    ]

    [views.py]

    from django.shortcuts import render
    from django.http import HttpResponse
    from first_app.models import Topic, Webpage, AccessRecord

    def index(request):
        webpages_list = AccessRecord.objects.order_by('date')
        date_dict = {'access_records':webpages_list}
        return render(request,'first_app/index.html',context=date_dict)

[help]

    [urls.py]

    from django.urls import path
    from . import views

    urlpatterns = [
        path('', views.help, name='help'),
    ]

    [views.py]

    from django.shortcuts import render
    from django.http import HttpResponse

    def help(request):
        dict_vars = {'var_name':'Jules'}
        return render(request,'help/help.html',context=dict_vars)

[users]

    [urls.py]

    from django.urls import path
    from . import views

    urlpatterns = [
        path('', views.users, name='users'),
    ]

    [views.py]

    from django.shortcuts import render
    from django.http import HttpResponse

    def users(request):
        dict_vars = {'var_name':'Jules'}
        return render(request,'users/users.html',context=dict_vars)



This version does not work.
 - The users app is removed and view moved to first_app
 - The users.html template is moved to the correct template folder
 - the help app does not change; it is just here for completeness

[first_project]

    [settings.py]

    INSTALLED_APPS = [
        'django.contrib.admin',
        'django.contrib.auth',
        'django.contrib.contenttypes',
        'django.contrib.sessions',
        'django.contrib.messages',
        'django.contrib.staticfiles',
        'first_app',
        'help',
    ]

    [urls.py]

    from django.contrib import admin
    from django.urls import path, include
    from first_app import views

    urlpatterns = [
        path('', views.index, name="index"),
        path('first_app/', include('first_app.urls')),
        path('users/', include('first_app.urls')),      <---- this line changes
        path('help/', include('help.urls')),
        path('admin/', admin.site.urls),
    ]


[first_app]

    [urls.py]

    from django.urls import path
    from . import views

    urlpatterns = [
        path('', views.index, name='index'),
        path('users/', views.users, name='users'),
    ]

    [views.py]

    from django.shortcuts import render
    from django.http import HttpResponse
    from first_app.models import Topic, Webpage, AccessRecord

    def index(request):
        webpages_list = AccessRecord.objects.order_by('date')
        date_dict = {'access_records':webpages_list}
        return render(request,'first_app/index.html',context=date_dict)

    def users(request):
        dict_vars = {'var_name':'Jules'}
        return render(request,'first_app/users.html',context=dict_vars)

[help]

    [urls.py]

    from django.urls import path
    from . import views

    urlpatterns = [
        path('', views.help, name='help'),
    ]

    [views.py]

    from django.shortcuts import render
    from django.http import HttpResponse

    def help(request):
        dict_vars = {'var_name':'Jules'}
        return render(request,'help/help.html',context=dict_vars)


In the first version, when I navigate to http://127.0.0.1:8000/users I see users.html, as expected.
In the second version, when I navigate to http://127.0.0.1:8000/users I see index.html from first_app!