MarketSeries close/open/high/low same value OnBar

using System;
using System.Linq;
using cAlgo.API;
using cAlgo.API.Indicators;
using cAlgo.API.Internals;
using cAlgo.Indicators;

namespace cAlgo
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class MGMScalp01 : Robot
    {
        [Parameter("Source")]
        public DataSeries Source { get; set; }

        [Parameter("Periods", DefaultValue = 14)]
        public int Periods { get; set; }

        [Parameter("Volume", DefaultValue = 10000, MinValue = 1000)]
        public int Volume { get; set; }

        [Parameter("Take profit %", DefaultValue = 50)]
        public int ProfitPercent { get; set; }

        private RelativeStrengthIndex rsi;
        private double open, high, low, close;
        private int index;

        protected override void OnStart()
        {
            rsi = Indicators.RelativeStrengthIndex(Source, Periods);
        }

        protected override void OnBar()
        {
            if (Trade.IsExecuting)
                return;

            index = MarketSeries.Close.Count - 1;

            close = MarketSeries.Close[index];
            high = MarketSeries.High[index];
            low = MarketSeries.Low[index];
            open = MarketSeries.Open[index];

            if (rsi.Result.LastValue > 70)
            {
                Print("RSI>70: {0}", rsi.Result.LastValue);

                if (VerifyShootingStar())
                    Open(TradeType.Sell);
            }
        }

        protected override void OnStop()
        {
            // Put your deinitialization logic here
        }

        private bool VerifyShootingStar()
        {
            double lowGap = (close < open) ? (close - low) : (open - low);
            double highGap = (close > open) ? (high - close) : (high - open);
            double body = (close > open) ? (close - open) : (open - close);
            double length = lowGap + body + highGap;

            Print("LG: {0}, HG: {1}, BD: {2}, LG: {3}, OHLC: {4},{5},{6},{7}", lowGap, highGap, body, length, open, high, low, close);

            return false;
        }

        private void Open(TradeType tradeType)
        {
            var position = Positions.Find("MGMScalp01", Symbol, tradeType);

            if (position == null)
                ExecuteMarketOrder(tradeType, Symbol, Volume, "MGMScalp01");
        }
    }
}

This code produce this output:

What am I doing wrong?