The chart price appeared to reach my Take Profit but did not trigger. Why?

Charts show the Bid price only so should not be relied on solely to determine the actual market Offer. The spread must also be considered within the context of different order types and how they are triggered: For a Buy Limit the market has to be Offered at, or below, your chosen level For a Sell Limit the market has to be Bid at, or above, your chosen level For a Buy Stop the market has to be Offered at, or above, your chosen level For a Sell Stop the market has to be Bid at, or below, your chosen level To view the Offer price on your chart, you can use Custom Indicators. that are available to show the Offer on your chart.