Cannot access Bitmap Scan0 Pixel data past 2GB in 64 process - Can Create a bitmap larger that 2gb, but when accesses the memory, I get a Access Violation at 2gb

//must use lingpad 'any cpu' or create a console app set to run as 64bit.
void Main()
{
	int height = 101406;
	int width = 9600;
	var bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb);
	unsafe
	{
		System.Drawing.Color color = System.Drawing.Color.Beige;
		for(int y = 0; y < height; y++)
		{
			if (y % 50 == 0) Console.Write(".");
			if (y % 1000 == 0) Console.WriteLine(" " + y);
			
			byte* rowStartPosition = (byte*)bmp.Scan0.ToPointer() + (y * bmp.Stride);
			for(int x = 0; x < width; x++)
			{
				try
				{
					byte* pixelPostion = rowStartPosition + (x * 3);
					// do real work here 
					//var color = CMYKToRGB(planes[0][x], planes[1][x], planes[2][x], planes[3][x]);
					
					//will crash here when we pass 2GB
					*(pixelPostion + 0) = (byte)color.B;
					*(pixelPostion + 1) = (byte)color.G;
					*(pixelPostion + 2) = (byte)color.R;
				}
				catch(Exception ex) //since it is an Access violation, we cannot not catch it without extra settings
				{
					Console.WriteLine($"Error updating pixel color. x,y {x},{y}. msg: {ex.Message}");
					throw;
				}
			}
		}
	}
}

<configuration>
  <runtime>
    <gcAllowVeryLargeObjects enabled="true"></gcAllowVeryLargeObjects>
  </runtime>
</configuration>

int height = 101406;
int width = 9600;
var bmp = new Bitmap(width, height, PixelFormat.Format24bppRgb);
bmp.Fill(Color.FromGdiPlusColor(System.Drawing.Color.BlueViolet));

bmp.Save(@"C:\temp\test.jpg");

   at Aurigma.GraphicsMill.GMException.ThrowManagedException(IntPtr unmanagedException)
   at Aurigma.GraphicsMill.PipelineElement.RunPipeline()
   at Aurigma.GraphicsMill.Pipeline.Run()
   at Aurigma.GraphicsMill.Bitmap.SaveToWriter(ImageWriter writer)
   at Aurigma.GraphicsMill.Bitmap.Save(String fileName)
   at UserQuery
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.ThreadHelper.ThreadStart()