Fragment inside Custom View

I've created a custom view which when you click on the view it expands and shows some additional information and a video, but the video is optional so I did a fragment and if the video is available I start the fragment, otherwise no. I'm adding this custom view on a GridLayout. Here's the problem, when I click on a view the video just show up on the first view of the list. Does anyone know why is this happening and how to solve this issue?

Custom View layout code:

<merge 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">

    <LinearLayout
        android:id="@+id/short_description_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:padding="16dp"
        tools:visibility="gone">

        <TextView
            android:id="@+id/step_number_short"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="16dp"
            android:textColor="@android:color/black"
            android:textSize="16sp" />

        <TextView
            android:id="@+id/short_description"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:textSize="16sp" />

    </LinearLayout>

    <android.support.constraint.ConstraintLayout
        android:id="@+id/long_description_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:visibility="gone">

        <TextView
            android:id="@+id/step_number_long"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:textSize="16sp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/long_description"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="16dp"
            android:textColor="@android:color/black"
            android:textSize="16sp"
            app:layout_constraintStart_toEndOf="@+id/step_number_long"
            app:layout_constraintTop_toTopOf="@+id/step_number_long" />

        <FrameLayout
            android:id="@+id/step_content"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@id/long_description" />

    </android.support.constraint.ConstraintLayout>

</merge>

Custom View code:

public class StepView extends CardView {
    private LinearLayout shortDescriptionLayout;
    private ConstraintLayout longDescriptionLayout;

    public StepView(Context context) {
        super(context);
        init(null);
    }

    public StepView(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        init(attrs);
    }

    public StepView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(attrs);
    }

    public void setStep(Step step) {
        initializeViews(step);
    }

    @Override
    public void setOnClickListener(@Nullable OnClickListener l) {
        super.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                StepView.this.onClick();
            }
        });
    }

    public void onClick() {
        if (shortDescriptionLayout.getVisibility() == View.GONE) {
            shortDescriptionLayout.setVisibility(View.VISIBLE);
            longDescriptionLayout.setVisibility(View.GONE);
            stopPlayer();
        } else {
            shortDescriptionLayout.setVisibility(View.GONE);
            longDescriptionLayout.setVisibility(View.VISIBLE);
        }
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        GridLayout.LayoutParams params = (GridLayout.LayoutParams) getLayoutParams();
        params.height = ViewGroup.LayoutParams.WRAP_CONTENT;
        params.width = ViewGroup.LayoutParams.MATCH_PARENT;
        params.bottomMargin = ScreenUtils.dpToPixels(getContext(), 8);
        params.rightMargin = ScreenUtils.dpToPixels(getContext(), 8);
        params.leftMargin = ScreenUtils.dpToPixels(getContext(), 8);
        params.topMargin = ScreenUtils.dpToPixels(getContext(), 8);
    }

    private void init(@Nullable AttributeSet set) {
        LayoutInflater.from(getContext()).inflate(R.layout.view_step, this, true);
        shortDescriptionLayout = findViewById(R.id.short_description_layout);
        longDescriptionLayout = findViewById(R.id.long_description_layout);
        setOnClickListener(null);

        if (set == null) {
            return;
        }
        TypedArray typedArray = getContext().obtainStyledAttributes(set, R.styleable.StepView);
        int stepNumber = typedArray.getInteger(R.styleable.StepView_step_number, -1);
        String shortDescription = typedArray.getString(R.styleable.StepView_short_description);
        String longDescription = typedArray.getString(R.styleable.StepView_long_description);
        String videoUrl = typedArray.getString(R.styleable.StepView_video_url);
        String thumbnailUrl = typedArray.getString(R.styleable.StepView_thumbnail_url);
        typedArray.recycle();
        Step step = new Step(stepNumber, shortDescription, longDescription, videoUrl, thumbnailUrl);
        initializeViews(step);
    }


    private void initializeViews(Step step) {
        TextView stepNumberShort = shortDescriptionLayout.findViewById(R.id.step_number_short);
        stepNumberShort.setText(Integer.toString(step.getId()));
        TextView shortDescription = shortDescriptionLayout.findViewById(R.id.short_description);
        shortDescription.setText(step.getShortDescription());

        TextView stepNumberLong = longDescriptionLayout.findViewById(R.id.step_number_long);
        stepNumberLong.setText(Integer.toString(step.getId()));
        TextView longDescription = longDescriptionLayout.findViewById(R.id.long_description);
        longDescription.setText(step.getLongDescription());
        setUpContent(step.getVideoUrl());
    }

    private void setUpContent(String videoUrl) {
        FragmentActivity activity = (FragmentActivity) getContext();
        FragmentManager fragmentManager = activity.getSupportFragmentManager();
        if (!videoUrl.isEmpty()) {
            fragmentManager.beginTransaction()
                    .replace(R.id.step_content, new ExoPlayerFragment())
                    .commit();
        }
    }

    private void stopPlayer() {
        //TODO: Stop player here
    }
}

Example: In the last picture the black rectangle should be in the second view, not in the first one.