I have another very strange problem. I am debugging a strategy right now and to have it faster i only backtest 1 week when some trades occured to see if all goes as it is suppossed to. Now i thought i test a little longer period (2 weeks) and see how the program behaves. So i tested the same week as before and also the week before that. Now sudddenly the program doesnt take any trades at all! Not in the week i backtested before and not in the week before either.
How can this happen? The program should take the same trades for the second week and maybe some more in the first week but no trade at all?
Concrete: If i test for example 6th march 2017 until 31st march the strategy takes 6 trades but do i test 1st march until 31st march i get zero trades. So adding the first week of march to the testintervall not only gives no extra trades but the program says no trades at all!!