List<>.ToArray<>() System.ArgumentException: "Недопустимый параметр."

class Curve {
    public List<Point> points = new List<Point>();
    
    public Curve (Point point1, int brushSize, Color colorLine) {
        points.Add(point1);
    }
 
    public void Draw(Graphics g) {
        Pen pen = new Pen(colorLine, brushSize);
        g.DrawCurve(pen, points.ToArray<Point>()); //В этом месте получаю ошибку System.ArgumentException: "Недопустимый параметр."
    }
 
}

points.ToArray()

public List<Point> points = new List<Point>() { new Point() };

public void Draw(Graphics g)
{
    Pen pen = new Pen(colorLine, brushSize);
 
    Point[] pointsArray = new Point[points.Count];
    for (int i = 0; i < points.Count; i++)
    {
        pointsArray[i] = points[i];
    }
    g.DrawCurve(pen, pointsArray); //В этом месте получаю ошибку System.ArgumentException: "Недопустимый параметр."
}

sing System;
using System.Collections.Generic;
using System.Drawing;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace Lab4 {
    [Serializable()]
    class Curve : Figure {
 
        public List<Point> points = new List<Point>() { new Point(1, 1), new Point(200, 200) };
 
        public Curve(Point point1, Point point2, int brushSize, Color colorLine, Color colorBackground) : base(point1, point2, brushSize, colorLine, colorBackground) {
 
        }
 
        public override void DrawDash(Graphics g) {
            Pen pen1 = new Pen(colorLine, brushSize);
            pen1.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
            g.DrawCurve(pen1, points.ToArray());
        }
 
        public override void Draw(Graphics g, int scrollV, int scrollH) {
            Pen pen1 = new Pen(colorLine, brushSize);
            g.DrawCurve(pen1, points.ToArray<Point>());
        }
 
        public override void Hide(Graphics g) {
            Pen pen1 = new Pen(Color.White, brushSize);
            g.DrawCurve(pen1, points.ToArray());
        }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Drawing;
 
namespace Lab4 {
    [Serializable()] abstract class Figure {
        protected int x1, y1, x2, y2, x, y;
        protected int brushSize; protected Color colorLine, colorBackground;
        public Figure(Point point1, Point point2, int brushSize, Color colorLine, Color colorBackground) {
 
            x1 = point1.X;
            y1 = point1.Y;
            x2 = point2.X;
            y2 = point2.Y;
 
            if (x1 > x2) { x = x2; x2 = x1; x1 = x; }
            if (y1 > y2) { y = y2; y2 = y1; y1 = y; }
 
            this.brushSize = brushSize;
            this.colorLine = colorLine;
            this.colorBackground = colorBackground;
 
        }
        public abstract void Draw(Graphics g, int scrollV, int scrollH);
        public abstract void DrawDash(Graphics g);
        public abstract void Hide(Graphics g);
 
        public int Width() {
            return x2;
        }
        public int Height() {
            return y2;
        }
    }
}