RecyclerView inside CoordinatorLayout scrolls before Toolbar is colapsed

Question

I have an image and a recyclerview, and I would like it to scroll as if they were inside a NestedScrollView. But I also want my RecyclerView to recycle the views (not to load everything like in a listview).

To achieve that, I am using a CoordinatorLayout. But it's not working the way that I need. The RecyclerView is scrolling even when the CollapsibleToolbar is not collapsed.

Could anyone help me figure out what I am doing wrong? I have tried everything I read here on StackOverflow, nothing worked.

I already tried android:nestedScrollingEnabled="true" and "false" as suggested in similar questions. Didn't work.

androidx version: androidx.appcompat:appcompat:1.4.1

<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".ToVisitFragment"
android:id="@+id/to_visit_container">

<androidx.coordinatorlayout.widget.CoordinatorLayout
    android:id="@+id/to_visit_coordinatorLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/to_visit_app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent"
        android:visibility="visible"
        app:elevation="0dp">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:id="@+id/to_visit_collapsing_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <ImageView
                    android:id="@+id/to_visit_map"
                    style="@style/WorldMap"
                    android:contentDescription="@string/world_map"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

            </androidx.constraintlayout.widget.ConstraintLayout>
        </com.google.android.material.appbar.CollapsingToolbarLayout>
    </com.google.android.material.appbar.AppBarLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/to_visit_regions_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="80dp"
        android:clipToPadding="false"
        android:orientation="vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        tools:listitem="@layout/item_region" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>

<com.google.android.material.floatingactionbutton.FloatingActionButton
    android:id="@+id/to_visit_button_add"
    style="@style/MyFloatingActionButton"
    android:contentDescription="@string/desc_add_city"
    android:backgroundTint="@color/purple"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent" />
 </androidx.constraintlayout.widget.ConstraintLayout>

EDIT

After @BenjyTec mentioned the recyclerView item layout file, I found the problem. I have another recyclerView inside the item. I had set isScrollContainer to false, but didn't set nestedScrollView to false on the inner recyclerView.

Here is the working code:

item layout:

    <TextView
        android:id="@+id/region_title"
        style="@style/Title"
        android:layout_marginStart="24dp"
        android:layout_marginTop="24dp"
        android:text="América Latina"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/region_country_list"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:isScrollContainer="false"
        android:nestedScrollingEnabled="false"
        android:layout_marginTop="10dp"
        android:layout_marginStart="24dp"
        android:layout_marginEnd="24dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/region_title"
        tools:listitem="@layout/item_country"/>

Coordinator Layout:

<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/to_visit_coordinatorLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/to_visit_app_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@android:color/transparent"
        android:visibility="visible"
        app:elevation="0dp">

        <com.google.android.material.appbar.CollapsingToolbarLayout
            android:id="@+id/to_visit_collapsing_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_scrollFlags="scroll|exitUntilCollapsed">

            <androidx.constraintlayout.widget.ConstraintLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:layout_collapseMode="pin">

                <ImageView
                    android:id="@+id/to_visit_map"
                    android:layout_width="0dp"
                    android:layout_height="0dp"
                    android:scaleType="fitCenter"
                    android:src="@drawable/map_world"
                    android:paddingStart="10dp"
                    android:paddingEnd="10dp"
                    android:background="@color/grey_200"
                    android:contentDescription="@string/world_map"
                    app:layout_constraintDimensionRatio="h,16:11"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />

            </androidx.constraintlayout.widget.ConstraintLayout>
                
        </com.google.android.material.appbar.CollapsingToolbarLayout>
    </com.google.android.material.appbar.AppBarLayout>

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/to_visit_regions_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingBottom="80dp"
        android:clipToPadding="false"
        tools:listitem="@layout/item_region"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

    <com.google.android.material.floatingactionbutton.FloatingActionButton
        android:id="@+id/to_visit_button_add"
        style="@style/MyFloatingActionButton"
        android:contentDescription="@string/desc_add_city"
        android:backgroundTint="@color/purple"
        android:layout_gravity="bottom|end"/>

</androidx.coordinatorlayout.widget.CoordinatorLayout>