HorizontalScrollView is jumping to the start on motion layout animation

Question

When animating a motion layout(expand animation) inside a HorizontalScrollView at the end of the animation the scroll view jumps to the start(see attached video). Tried to use the following code to move scroll view back:

 motion.setTransitionListener(object : MotionLayout.TransitionListener {
            override fun onTransitionCompleted(motionLayout: MotionLayout, currentId: Int) {
                motionLayout.post {
                    scrollView.fullScroll(HorizontalScrollView.FOCUS_RIGHT)
                }
            }
        }

But the experience is not seamless, I actually see it jumping back. What I want is the layout to stay still after the expand animation without the scroll view jump.

My layout:

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <HorizontalScrollView
        android:id="@+id/horizontalScrollView"
        android:layout_width="match_parent"
        android:layout_gravity="bottom|end"
        android:fillViewport="true"
        android:layout_height="64dp">

        <androidx.constraintlayout.motion.widget.MotionLayout
            android:id="@+id/motion"
            android:layout_width="wrap_content"
            android:layout_height="64dp"
            app:layoutDescription="@xml/activity_main_scene">

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/sms"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/sting"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/soundMode"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/natureSound"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/light"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/twoWaySound"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/photo"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

            <com.google.android.material.imageview.ShapeableImageView
                android:id="@+id/handle"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_gravity="center_vertical"
                android:background="@color/teal_200"
                app:shapeAppearanceOverlay="@style/CameraActionView"
                app:srcCompat="@drawable/ic_launcher_foreground" />

        </androidx.constraintlayout.motion.widget.MotionLayout>

    </HorizontalScrollView>

</FrameLayout>


<?xml version="1.0" encoding="utf-8"?>
<MotionScene xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <ConstraintSet android:id="@+id/start">

        <Constraint
            android:id="@+id/sms"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/sting"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/soundMode"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/natureSound"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/light"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/twoWaySound"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/photo"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:alpha="0"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/handle"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

    </ConstraintSet>

    <ConstraintSet android:id="@+id/end">

        <Constraint
            android:id="@+id/sms"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/sting"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/sms"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/soundMode"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/sting"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/natureSound"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/soundMode"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/light"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/natureSound"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/twoWaySound"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/light"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/photo"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/twoWaySound"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

        <Constraint
            android:id="@+id/handle"
            android:layout_width="@dimen/live_button_size"
            android:layout_height="@dimen/live_button_size"
            android:layout_marginEnd="12dp"
            android:rotation="180"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toStartOf="@+id/photo"
            app:layout_constraintTop_toTopOf="parent"
            app:visibilityMode="ignore" />

    </ConstraintSet>

    <Transition
        app:constraintSetEnd="@id/end"
        app:constraintSetStart="@+id/start"
        app:duration="250"
        app:motionInterpolator="easeInOut">
        <OnClick app:targetId="@+id/handle" />
    </Transition>
</MotionScene>

video link: https://streamable.com/6t0oa0