У меня проблемы с crispy_forms и наборами форм

Я использую django_crispy_forms и имею 2 набора форм внутри главной формы. Формсеты генерируют & сохраняют данные правильно, за исключением первой строки, данные в которой никогда не сохраняются. В источнике страницы первая строка не имеет номера экземпляра, а вторая строка имеет номер экземпляра 0. Например, id vegetationType для первой строки - id_vegetation-prefix-VegetationType, для второй строки - id_vegetation-0-VegetationType. Если я удалю помощник формы из html страницы ({% crispy formset_vegetation%} вместо {% crispy formset_vegetation formset_vegetation.form.helper%}, то набор форм отображается правильно без лишней строки сверху, но строки не форматируются как инлайн набор форм.

Кто-нибудь видит, что я делаю неправильно?

models.py

class Landcover(models.Model):
    Site = models.ForeignKey(Site, on_delete=models.RESTRICT, default=None, blank=True, editable=True, verbose_name='1. Site Name')
    Recorders = models.ManyToManyField(ProjectStaff, default=None, verbose_name = '2. Recorders(s)', help_text='select all that apply')
    Date = models.DateField(default=None, verbose_name='3. Date')
    Latitude = models.DecimalField(max_digits=9, decimal_places=6, default=None, verbose_name='4. Latitude')
    Longitude = models.DecimalField(max_digits=9, decimal_places=6, default=None, verbose_name='5. Longitude')

class VegetationLevels(models.Model):
    Landcover = models.ForeignKey(Landcover, on_delete=models.RESTRICT, default=None, editable=True)
    VegetationLevel = models.ForeignKey(VegetationLevel, on_delete=models.RESTRICT, default=None, verbose_name='Vegetation Level')
    VegetationType = models.ManyToManyField(VegetationType, default=None, verbose_name='Vegetation Types')

class DensiometerReadings(models.Model):
    Landcover = models.ForeignKey(Landcover, on_delete=models.RESTRICT, default=None, editable=True)
    Latitude = models.DecimalField(max_digits=9, decimal_places=6, default=None)
    Longitude = models.DecimalField(max_digits=9, decimal_places=6, default=None)
    Reading = models.IntegerField(default=None, blank=True, verbose_name='Open Canopy Reading')

forms.py

class LandcoverForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        self.helper = FormHelper()   
        super(LandcoverForm, self).__init__(*args, **kwargs)
        self.fields['Date'].widget = forms.DateInput(attrs={'type':'date'})

    class Meta:
        model = Landcover
        fields = '__all__'
        widgets = {
           'Recorders': forms.CheckboxSelectMultiple
        }

 class VegetationLevelsForm(ModelForm):
    def __init__(self, *args, **kwargs):
        self.helper = FormHelper()
        self.helper.form_tag = False
        self.helper.template = 'bootstrap/table_inline_formset.html'
        super(VegetationLevelsForm, self).__init__(*args, **kwargs)
    class Meta:
        model = VegetationLevels
        fields = ('VegetationLevel','VegetationType','Percentage','Photo')

 class DensiometerReadingsForm(ModelForm):
    def __init__(self, *args, **kwargs):
        self.helper = FormHelper()
        self.helper.form_tag = False
        self.helper.template = 'bootstrap/table_inline_formset.html'
        super(DensiometerReadingsForm, self).__init__(*args, **kwargs)
    class Meta:
        model = DensiometerReadings
        fields = ('Latitude','Longitude','Reading',)

views.py

def landcover_edit(request, landcover_id):
    land = get_object_or_404(Landcover, id=landcover_id)
    VegetationFormset = inlineformset_factory(Landcover, VegetationLevels, form=VegetationLevelsForm, extra=2, max_num=3, can_delete=False)
    DensioFormset = inlineformset_factory(Landcover, DensiometerReadings, form=DensiometerReadingsForm, extra=0, max_num=20, can_delete=True)
        
    if request.method == "POST":
        form = LandcoverForm(request.POST, instance=land)
        formset_vegetation = VegetationFormset(request.POST, request.FILES, prefix='vegetation', instance=land)
        formset_densio = DensioFormset(request.POST, request.FILES, prefix='densio', instance=land)
                  

        if form.is_valid() and formset_densio.is_valid() and formset_vegetation.is_valid():
            new_landcover = form.save(commit=True)
            formset_vegetation.save(commit=True)
            formset_densio.save(commit=True)
            return redirect('landcover_list')
    else:
        form = LandcoverForm(instance=land)
        form.fields['Site'].disabled = True 
        formset_vegetation = VegetationFormset(instance=land, prefix='vegetation')
        formset_densio = DensioFormset(instance=land, prefix='densio')
    return render(request, "eeidi/landcover_edit.html", {"form":form, "formset_densio": formset_densio,  "formset_vegetation": formset_vegetation, 'title': 'Edit'})

landcover_edit.html

...
    <div class="form-inline">
        <h8>Vegetation Types</h8>
        {% crispy formset_vegetation formset_vegetation.form.helper%}
    </div>
...

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