When I add an app with the name `advertisements` (add models, admin + register in `INSTALLED_APPS`) it is not listed in the admin interface (it is very hard to see but it disappears after microseconds).

`models.py`:

```py
from django.db import models

# Create your models here.

class Advertisement(models.Model):
    pass

```

`admin.py`:

```py
from django.contrib import admin

from .models import Advertisement

# Register your models here.
@admin.register(Advertisement)
class AdvertisementAdmin(admin.ModelAdmin):
    pass

```

`apps.py`:

```py
from django.apps import AppConfig

class AdvertisementsConfig(AppConfig):
    default_auto_field = 'django.db.models.BigAutoField'
    name = 'advertisements'

```

`settings.py`:

```py
INSTALLED_APPS = [
    # ...
    "advertisements",
]

```

Changing an app directory to something like `advertisements2`, app name (in `apps.py`) to `advertisements2` solves the problem.

Why the app with the name 'advertisements' is not listed in the admin interface?" What is the issue with the name "advertisements"?

I tested in many times in completely blank project.