EA works fine sometimes, other times not. Code problem or Broker Problem?

[BCQuant]

Hi there,

this simple Martingail Expert here compiles fine and catches all the trades in backtesting. In Live trading though, it catches maybe about 50% of the intended trades and misses out on the other half.
I traded it live on a single pair for about half a year and it maybe caught 80%. Recently I rewrote the code to work on multiple pairs and the problem seems to be worse.

I originally thought that this IF(Volume[0]==1) condition might be jumped over sometimes, but the EA also skips over the closing routine where no such condition is set.

Or could it be the broker? I did try it on three different brokers though and the problem persists with all of them...

Any suggestions to make this one run 100% would be highly appreciated.

Thanks

BCQ

//+------------------------------------------------------------------+
//|                                    RSIMartingailConservative.mq4 |
//|                                        Copyright © 2018, BCQuant |
//|                                                                  |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2018, BCQuant"
extern double minstep=190;
extern double period_RSI=20;
extern double zoneBUY=30;
extern double zoneSELL=70;
double lot,n,openprice,profitgoal;
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
   //Calculate current profit and number of open orders on current pair
   double pairprofit=0;
   int total=0;
   for (int cnt=0; cnt<OrdersTotal();cnt++)
   {
    if (OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES)==true)
     if (OrderSymbol()==Symbol()) 
      pairprofit+=OrderProfit()+OrderCommission()+OrderSwap();
      total++;
   }
   //Prepare lot size and profitgoal
   
   if(total<2) 
   {
    lot=0.01;
    profitgoal=0.53;
   }
   else
   if(total==2) 
   {
    lot=0.02;
    profitgoal=0.8;
   }
   else
   if(total==3) 
   {
    lot=0.04;
    profitgoal=1.2;
   }
   else
   if(total==4) 
   {
    lot=0.08;
    profitgoal=1.8;
   }
   else
   if(total>4) 
   {
    lot=0.16;
    profitgoal=2.7;
   }
   
   //CloseOpenOrders if Profit
   if(pairprofit>=profitgoal)
     {
      for(int i=0;i<OrdersTotal();i++)
      {
       if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
        if(OrderSymbol()==Symbol())
         if(OrderClose(OrderTicket(),OrderLots(),OrderClosePrice(),3,Yellow))
          i--;
      }
     }
     
    //Only start checking open conditions if first tick
    if(Volume[0]==1)
    { 
    //Calculate RSI's
    double RSI0=iRSI(NULL,0,period_RSI,PRICE_CLOSE,1);
    double RSI1=iRSI(NULL,0,period_RSI,PRICE_CLOSE,2);
    
    //Open conditions
    if(total<1)
     {
      if(RSI1<zoneBUY&&RSI0>RSI1)
      {
       n=OrderSend(Symbol(),OP_BUY,lot,Ask,3,0,0,NULL,0,0,Green);
      }
      if(RSI1>zoneSELL&&RSI0<RSI1)
      {
       n=OrderSend(Symbol(),OP_SELL,lot,Bid,3,0,0,NULL,0,0,Red);
      }
     }
    //Double up conditions
    if (OrderSelect(n,SELECT_BY_TICKET,MODE_TRADES)==true)
     if (OrderSymbol()==Symbol())
      openprice=OrderOpenPrice();
    if(total>0)
     {
      if(OrderType()==OP_BUY)
      {
       if(RSI1<zoneBUY&&RSI0>zoneBUY)
       {
        if((openprice-minstep*Point)>Ask)
        {
         n=OrderSend(Symbol(),OP_BUY,lot,Ask,3,0,0,NULL,0,0,Green);
        }
       }
      }
      if(OrderType()==OP_SELL)
      {
       if(RSI1>zoneSELL&&RSI0<zoneSELL)
       {
       if ((openprice+minstep*Point)<Bid)
        {
         n=OrderSend(Symbol(),OP_SELL,lot,Bid,3,0,0,NULL,0,0,Red);
        }
       }
      }
     }
    else return(0);
    }   
 return(0);
}