Order Closed Before Stop Loss/Take Profit Reached

[Clifton Zama]

Please have a look at the screenshot I have attached. I set the stop loss at 1.15430 and left MT4 to do its thing. But when I went back to it, the order was closed and I had made a loss. What I don't understand is how this happened as the pair never reached that level. 

[Fernando Carreiro]

Clifton Zama: Please have a look at the screenshot I have attached. I set the stop loss at 1.15430 and left MT4 to do its thing. But when I went back to it, the order was closed and I had made a loss. What I don't understand is how this happened as the pair never reached that level. 

The bars on the chart are based only on Bid prices, but a sell position is closed at the Ask price, which is the Bid price plus the spread.

The rules are as follows:

• A buy position, opens at the Ask price and closes at the Bid price.
• A sell position, opens at the Bid price and closes at the Ask price.