Unable to find NavController that's inside a DialogFragment

I have a BottomSheetDialogFragment that contains a NavHostFragment like so:

<layout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto">

    <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent">

        <fragment
                android:id="@+id/add_feeling_nav_host_fragment"
                android:name="androidx.navigation.fragment.NavHostFragment"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                app:defaultNavHost="true"
                app:navGraph="@navigation/add_feeling_graph" />

    </LinearLayout>
</layout>

When I try to get the NavController in it's class using either of the following:

activity?.findNavController(R.id.add_feeling_nav_host_fragment)
view.findNavController()

The first option crashes because it cannot find the ID and the second one does finds a parent Nav Controller and uses that.

I have an identical setup for another Fragment however it's not a dialog and it works perfectly. Any ideas to what the issue could be? Thanks

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