Different-backtest-results-for-each-run-despite-NSF-0

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Indicators;

namespace WealthScript5 
{
   public class OnePercentV3 : UserStrategyBase
   {
      public override void Initialize(BarHistory bars)
      {
         rsi = new RSI(bars.Close, 5);
         sma50 = new SMA(bars.Close, 3);
         hi52 = new Highest(bars.Close, 30);

         var external = GetHistory(bars, "^GSPC");
         idxSma = new EMA(external.Close, 20);

         StartIndex = 246;
      }

      public override void Execute(BarHistory bars, int idx)
      {
         bool NextBarIsStartOfWeek = _lastBarofWeek == idx;
         bool NextBarIsLastDayOfWeek = bars.TomorrowIsLastTradingDayOfWeek(idx);
         if (NextBarIsLastDayOfWeek)
            _lastBarofWeek = idx + 1;

         if (idx - 1 == _lastBarofWeek)
            SetBackgroundColor(bars, idx, WLColor.Silver.SetAlpha(32));

         if (NextBarIsStartOfWeek)
         {
            mondayOpen = bars.Open[idx + 1];  //sessionOpenPrice;
            mondayClose = bars.Close[idx + 1];  //sessionOpenPrice;
            tradedThisWeek = false;
         }

         if (HasOpenPosition(bars, PositionType.Long))
         {
            var p = LastPosition;
            double target = LastOpenPosition.EntryPrice;
            if (LastOpenPosition.ProfitPctAsOf(idx) > -0.5)
               target = target * 1.01;

            Backtester.CancelationCode = 1;
            CloseAtTrailingStop(p, TrailingStopType.PercentC, 12, "Trailing Stop");

            Backtester.CancelationCode = 642;
            PlaceTrade(bars, TransactionType.Sell, OrderType.Limit, target, $"Sell {target.ToString("00.##")}");

            Backtester.CancelationCode = 640;
            if (idx < bars.Count - 1)
            {
               if (NextBarIsLastDayOfWeek)
                  PlaceTrade(bars, TransactionType.Sell, OrderType.MarketClose, 0, "Sell Friday");
            }
            else
            {
               //last bar: if today is the last trading day of the week, signal MOC for the open position
               if (bars.TomorrowIsLastTradingDayOfWeek(idx))
                  PlaceTrade(bars, TransactionType.Sell, OrderType.MarketClose, 0, "Sell Exit");
            }
         }
         else
         {
            if (!Double.IsNaN(mondayOpen) && !tradedThisWeek && !NextBarIsStartOfWeek
               && bars.Close[idx] > sma50[idx] * 0.92
               )  // TodayIsMonday)
            {

               double mult = 0.99;
               //   PlaceTrade(bars, TransactionType.Buy, OrderType.Limit, mondayOpen * mult, "Buy");
               if (mondayClose < mondayOpen * mult) //&& sma50[idx] > sma50[idx-1] )
               {
                  var trade = PlaceTrade(bars, TransactionType.Buy, OrderType.Market, 0, "Buy");
                  trade.Weight = -rsi[idx];
                  tradedThisWeek = true;
               }

               // not sure if it is good
               if (NextBarIsLastDayOfWeek)
               {
                  Backtester.CancelationCode = 642;
                  PlaceTrade(bars, TransactionType.Sell, OrderType.MarketClose, 0, "Sell SameDay");
               }
            }
         }
      }


      //same bar exit
      public override void AssignAutoStopTargetPrices(Transaction t, double basisPrice, double executionPrice)
      {
         //t.AutoProfitTargetPrice = executionPrice * 1.01;
         tradedThisWeek = true;
      }

      //declare private variables below
      private double mondayOpen = Double.NaN;
      private double mondayClose = Double.NaN;
      bool tradedThisWeek = false;
      int _lastBarofWeek = -1;
      private IndicatorBase rsi;
      private IndicatorBase sma50;
      IndicatorBase hi52;
      IndicatorBase idxSma;
   }
}