different builds and different results

 
I use tickstory for backtest and I use mt4 old builds example 950 and 970. WHy I do not get the same results on the both builds? 
Example Profit factor 2 on build 970 and profit factor

3.70 on build 950

I backtest scalping robot

 
Nicolae Carmaciu:
I use tickstory for backtest and I use mt4 old builds example 950 and 970. WHy I do not get the same results on the both builds? 
Example Profit factor 2 on build 970 and profit factor

3.70 on build 950

I backtest scalping robot


Do you really expect someone would test and analyse old builds with a 3-rd party SW for you?