On the screenshot you can see two orders on EURUSD:

1. Market order

   • Ticket 9 – buy 0.01 at 1.02578

   • Stop Loss (SL) – 1.01709

   • Take Profit (TP) – 1.03435

2. Pending order

   • Ticket 10 – sell stop 0.01 at 1.01709

   • SL – 1.02572

   • TP – 1.00846

This is how the swing / pendulum strategy works:

• When the EA opens a buy, it does not delete the opposite pending order.
  Instead, it keeps a sell stop at (or near) the current Stop Loss level of the buy position.

• If the market goes in our favor, the buy closes in profit and the sell stop is simply moved/updated according to the strategy rules.

• If the market goes against us and the buy is closed by Stop Loss, the price at the SL level activates the sell stop:

  • The sell stop becomes a market sell.

  • Immediately after that, the EA places a new opposite pending order (a buy stop or buy limit , depending on the logic) on the other side of the market.

• Thus the system always keeps:

  • one active position, and

  • one opposite pending order ready to “catch” the movement in the other direction.
    This is why the pending order is not removed – it is part of the pendulum logic, not an error.

Very important:

• The strategy does not use martingale – the lot size stays the same (0.01, 0.01, 0.01, …).

• Because there is no increasing of lot sizes, there is no explosive / geometric growth of profit on a small series of trades.
  Instead, the strategy works in a more conservative and stable way, with controlled risk on each swing.

So, what you see on the screenshot is normal behavior for this swing strategy:

• active buy position,

• and a prepared sell stop at the Stop Loss level, which will be activated if the current trade is closed by SL and then will start the next “swing” in the opposite direction.

Hello.

Thank you for your feedback.

You wrote that the trailing stop does not work, but the screenshot you attached does not show any information about the trailing function or about an error in the Expert Advisor.

To understand why something "does not work", we always need the log files and reports, not only a picture.

⚠️⚠️⚠️ FULL INFO about your problem: How to make Files   https://www.mql5.com/en/blogs/post/732566   ⚠️⚠️⚠️
🌐🌐🌐   https://expforex.com/mt5-expert-reports-and-server-log-files-for-bug-report/   🌐🌐🌐
▶️Youtube:   https://www.youtube.com/watch?v=yedpin0LPnQ

I made a special test: I turned Martingale = OFF and Trailing Stop = ON in the MT5 version.

In this mode the Expert Advisor works correctly – positions are opened and trailed as they should be.

Please, if you suspect a bug, attach all possible information at once: report, terminal and expert logs, set-files – according to the instructions above.

This will help us see the real situation and not waste time on additional questions.

After you send the full files, I will check your case in detail.