MTF in strategy tester does not work?

Show us your code for people to see and check what is wrong with it.

Sure, try this ea in tester and you see this. How can MTF work in strategy tester?

//+------------------------------------------------------------------+
//|                                                     mtf test.mq4 |
//|                        Copyright 2014, MetaQuotes Software Corp. |
//|                                              https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2014, MetaQuotes Software Corp."
#property link      "https://www.mql5.com"
#property version   "1.00"
#property strict
string Signal;

void OnTick()
  {
   double MA10fast=iMA(NULL,15,10,0,0,0,0);
   double MA20fast=iMA(NULL,15,20,0,0,0,0);
   double MA10slow=iMA(NULL,30,10,0,0,0,0);
   double MA20slow=iMA(NULL,30,20,0,0,0,0);
   TextLabel("TextLabel_1","[m15]","Arial",Yellow,10,100,45,1);
   TextLabel("TextLabel_2","[m30]","Arial",Yellow,10,50,43,1);
   TextLabel("TextLabel_3","[iMA10]","Arial",Yellow,10,150,75,1);
   TextLabel("TextLabel_4","[iMA20]","Arial",Yellow,10,150,99,1);
   TextLabel("TextLabel_5",DoubleToString(MA10fast,Digits),"Arial",Yellow,10,100,74,1); //ima10 m15
   TextLabel("TextLabel_6",DoubleToString(MA20fast,Digits),"Arial",Yellow,10,100,98,1); //ima10 m15
   TextLabel("TextLabel_7",DoubleToString(MA10slow,Digits),"Arial",Yellow,10,50,73,1); //ima20 m30
   TextLabel("TextLabel_8",DoubleToString(MA20slow,Digits),"Arial",Yellow,10,50,98,1); //ima30 m30
   if(MA10fast>=iHigh(NULL,15,0) && MA20fast>=iHigh(NULL,15,0) &&
      MA10slow>=iHigh(NULL,30,0) && MA20slow>=iHigh(NULL,30,0)){Signal="Buy";}
   if(MA10fast<=iLow(NULL,15,0) && MA20fast<=iLow(NULL,15,0) &&
      MA10slow<=iLow(NULL,30,0) && MA20slow<=iLow(NULL,30,0)){Signal="Sell";}
   TextLabel("TextLabel_9",Signal,"Arial",Yellow,20,50,120,1);
  }
void TextLabel(string Name, string FontText, string Font, color FontColor, int FontSize, int x, int y, int z)
   {
   ObjectCreate(Name,OBJ_LABEL,0,0,0);
   ObjectSetText(Name,FontText,FontSize,Font,FontColor);
   ObjectSet(Name,OBJPROP_BACK,false);      
   ObjectSet(Name,OBJPROP_CORNER,z); //Upper left=0, Upper right=1, Lower left=2, Lower right=3   
   ObjectSet(Name,OBJPROP_XDISTANCE,x);
   ObjectSet(Name,OBJPROP_YDISTANCE,y);
   }

You don't have (enough) M15 data.

i looked it up on google and i happened to find this post of my old account and that answer still cracks me up

What do you mean ?