Condition, Candle close in my algo inconsistent results. Why?

[AndBar]

Hi All,
I'm building and algo, which returns expected results until I add a condition as follows: After candle closes below FRAMA check current candle close (ID=0) is below previous candle close (ID=1) then Sell. Ditto for Buy, but above etc. When I run in MT4 strategy tester it correctly enters trades and results in s/l or t/p, but I can see at least 2 entries that are missed. What am I doing wrong? Appreciate any help. Cheers Ice

[l'andorrà]

Theer could be many reasons. Probably the ligic is failing somwhere. Can you please share your project?