Trades aren't copying: the checklist

Work down the list

1. Is the engine actually copying? Read the state pill in the top bar, on any page (on a phone, in the header). It says one word, and its colour carries the rest. A green Copying is the healthy state. An amber Copying means the kill switch is armed, usually because someone pressed Flatten all: the engine is up but places nothing until you press Resume copying. Stopped means nothing copies at all: press Start copying. If it stopped without you (an amber Stopped, or a Plan limit message), the reason is on record.
2. Does the group have a leader and an instrument? On the Trade Desk, open the group's tab, press Manage rules and check its Leader account and Leader instrument (it works while copying runs too, greyed). A group with no leader is off: its tab shows an OFF chip, its strip reads "GROUP OFF · NO LEADER", and it copies nothing.
3. Is the follower's row On in this group? Each group's tab has its own Follow switch for the account. A row that does not copy in that group has its switch off, and its Status reads Off (or Paused, in amber, while copying runs). Flip it back on. Switching off keeps the settings, it just stops the copying. A per-position Close also switches the account off in the group that copied the position, so check that group's tab. If switching it on is refused, the message at the top right says why (see copy groups). See closing a single position.
4. Is the connection enabled and up? On Accounts, the login must be Enabled. Press Test on that connection to check it. The status word beside it shows the running copier, not the login: it reads Copier stopped until you start copying, and Not in session if the copier started without it.
5. Is the instrument blocked? Check Blocked instruments on Settings, Copier (the gear on the Trade Desk links there). A blocked root never copies, in any group.
6. Are you over your plan? If Start copying came back with a message starting "Your plan includes … copy groups", copying never started: you have more copy groups than the plan includes. After a downgrade the same message can also be why copying stopped on its own. See plans and copy group limits.
7. Is the account locked? A daily-loss breach, a profit-target hit, or a manual lockout stops copying for that account while it keeps its position. Check Risk Management. See risk locks and the daily reset.
8. Did order expiry write the quantity off? If you set an order expiry and a mirror didn't fill in time, it was cancelled and the missed quantity written off, deliberately never re-chased at market. It shows in Order history. See order expiry and write-offs.
9. Is the row amber? A Status of Catching up (and, on a follower that is still flat, a position such as Flat → 2) means the follower is behind and the engine knows. Reconciliation corrects it on its own in a quiet moment. See when a follower doesn't match the leader.
10. Read the record. On the Trade Desk, open Order history and check the Rejected and Failed tabs, then the Notifications panel (the bell in the topbar). A reject names the broker's reason: margin, permissions, or session.