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Date/Time: Wed, 21 Oct 2026 00:27:19 +0000



Post From: Trade Simulation Mode - market orders no longer filling on MGCZ26 (Sim1) while data is live

[2026-10-20 17:48:44]
User142031 - Posts: 3
Hello,

Since about 12:50 PM ET today (Oct 20, 2026), market orders I place in Trade Simulation Mode are not being filled. Market data is updating normally the whole time.

Setup:
- Sierra Chart version: 2915
- Account: Sim1, Trade Simulation Mode ON
- Symbol: MGCZ26_FUT_CME, traded from the Trade DOM on chart #9 (chartbook MyMicroFutures.Cht)
- Trade window config: 2TargetsWithBEStop.twconfig (attached orders disabled)

What happens:
- Earlier today, simulated market orders filled normally. The Trade Activity Log shows many "Trade simulation fill" entries, the last right after a Flatten at about 4142.4.
- Every market order placed after that is accepted ("User order entry", order type Market) but never fills. I placed orders at about 4140.8, 4140.7, 4140.9 and 4139.9, and they stayed open until I cancelled them.
- There are no rejections or error messages in the Trade Activity Log.

What I've checked:
- Bid/ask and last price on the DOM are updating, and the status bar shows SIM connected.
- Trade Simulation Mode is on.
- Global Profit/Loss Management: daily loss limit is disabled, and the account is up for the day.
- Logged out and back in: same behavior.

Can you tell me what would stop simulated market orders from filling while market data is flowing, and how to clear it? I can provide the Trade Activity Log for today if needed.

Thank you,
Michael Macrae