Different results in MT4 for some NASDAQ strategies

I have backtested 14 strategies based on NASDAQ100 in SQX and MT4.


11/14 produce the same results (hourly correlation > 0.98)
3/14 instead have significant differencies:

• 4.1.171 does not produce any trade in MT4
• 5.5.173  results are rather different (hourly correlation < 0.8)
• 3.15.161(1) results are completely different (hourly correlation < 0.3)
  

MT4 data have been downloaded from Dukascopy using Rel 136 applying the Broker's parameters
Spread and MinDistance are consistent in both SQX and MT4 

UseSQTickSize has been set to TRUE 



The results using Rel 135 and Rel 136 indicators and mql4 files are the same.