CollectionView GridViewLayout one element alignment issue

CustomCollectionViewRenderer.cs

public class CustomCollectionViewRenderer : GroupableItemsViewRenderer<CustomCollectionView, GroupableItemsViewController<CustomCollectionView>>
{
  ItemsViewLayout _layout;

  protected override ItemsViewLayout SelectLayout()
  {
      var itemSizingStrategy = ItemsView.ItemSizingStrategy;
      var itemsLayout = ItemsView.ItemsLayout;

      if (itemsLayout is GridItemsLayout gridLayout)
          _layout = new CustomGridViewLayout(gridLayout, itemSizingStrategy);
      else
          _layout = base.SelectLayout();

      return _layout;
  }
  
}

CustomGridViewLayout.cs

public class CustomGridViewLayout : GridViewLayout
{
    public CustomGridViewLayout(GridItemsLayout itemsLayout, ItemSizingStrategy itemSizingStrategy) : base(itemsLayout, itemSizingStrategy)
    {
    }

    public override UICollectionViewLayoutAttributes[] LayoutAttributesForElementsInRect(CGRect rect)
    {
        var attributes = base.LayoutAttributesForElementsInRect(rect);

        var sections = attributes
            .Where(a => string.IsNullOrEmpty(a.RepresentedElementKind))
            .GroupBy(a => a.IndexPath.Section);

        foreach (var section in sections)
        {
            if(section.Count() == 1)
            {
                var attribute = section.First();
                var frame = attribute.Frame;

                frame.X = 0;

                attribute.Frame = frame;
            }
        }

        return attributes;
    }
}