Django Rest Framework почему API endpoint не содержит полный список объектов?

Question

[Jekson]

Итоговый Api не включает все сериализованные данные

InstagramGeograficsSerializer

class InstagramGeograficsSerializer(serializers.ModelSerializer):
        city = InstagramGeoCitySerializer(read_only=True)
    
        class Meta:
            model = InstagramGeograficsAnalitics
            fields = ('city', 'percentage',)

InstagramEthnicSerializer

class InstagramEthnicSerializer(serializers.ModelSerializer):
        class Meta:
            model = InstagramEthnicAnalitics
            fields = ('language', 'percentage',)

InstagramDemographicsSerializer

class InstagramDemographicsSerializer(serializers.ModelSerializer):
        class Meta:
            model = InstagramDemographicsAnalitics
            fields = ('age_group', 'gender', 'percentage', 'full_percentage',)

InstagramSerializer

class InstagramSerializer(serializers.HyperlinkedModelSerializer):
        geographics = InstagramGeograficsSerializer(many=True, read_only=True)
        demographics = InstagramDemographicsSerializer(many=True, read_only=True)
        ethnic = InstagramEthnicSerializer(many=True, read_only=True)

    
        class Meta:
            model = Instagram
            fields = ('id', 'userid', 'username', 'full_name', 'avatar', 'bio',
                      'website', 'media_count', 'follows_count',
                      'subscriber_count', 'engagement_rate', 'approval_rate',
                      'discussion_rate', 'male_percentage', 'female_percentage', 'geographics', 'demographics', 'ethnic',)

views.py

class InstagramDetail(generics.RetrieveAPIView):
        permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
        queryset = Instagram.objects.all()
        serializer_class = InstagramSerializer

В итоге API отдает данные по ethnic, но не содержит данные по geographics and demographics

{
        "count": 2,
        "next": null,
        "previous": null,
        "results": [
            {
                "id": 2,
                "userid": "3045727148",
                "username": "test2",
                "full_name": "full name",
                "avatar": "",
                "bio": "23",
                "website": "",
                "media_count": 0,
                "follows_count": 0,
                "subscriber_count": 0,
                "engagement_rate": "0.0000000",
                "approval_rate": "0.0000000",
                "discussion_rate": "0.0000000",
                "male_percentage": "0.000",
                "female_percentage": "0.000",
                "ethnic": []
            }