A rare problem with a specific order.

[MGDavid]

Hello,

I was developing a simple trading strategy with NinjaScrith for trading in the future CAC 40.
The code of Ninja is the following:
( You can see the screen shot of my strategy in the next file)
The strategy works very well in Back Test, but i have a rare problem when i running it in real time.

The strategy sends the entry order well and when the order is executed then... ( my stop loss ) is placed ok.
But if the strategy has a position = 1 at 18:45:00 then the order be cancel.

I am running the strategy in a chart of 10 minutes.
This is rare rare rare true ?
I am writing from Europe ( Spain), and i am running this strategy in another markets ( usa) and i have no this problem.

Why this happend to me ?
Sorry for my bad english , I am learning slowly

Thanks for your time.