"Buy Limit" or "Take Profit" order that was placed on a Sell position has not been executed?

"Buy Limit" or "Take Profit" order that was placed on a Sell position has not been executed, although the price on a chart has reached the order's price. Why?

Charts in MetaTrader 4 are generated using only Bid prices, but the orders for Sell positions are executed at Ask prices (you can see the both prices in MetaTrader 4 terminal, "Market Watch" window). The difference between these prices is a spread.  Please take this fact into consideration when placing your pending orders.

Learn how to read MT4 BID ASK PRICE here