Skip to main content

Why is replication failing for one instrument but not others?

How to diagnose instrument-specific replication failures caused by prop firm restrictions, contract size limits, or broker rejections.

If replication is failing for a specific instrument while other instruments in the same copy group are working correctly, the cause is almost always a prop firm or broker restriction — not a Tradecopia issue.

You might be experiencing this if:

  • One instrument isn't copying to your follower accounts, but others in the same copy group are working

  • Orders on a specific instrument are being rejected on some accounts but not others

  • An instrument that was replicating correctly before has suddenly stopped

  • Your leader placed a trade but one or more followers didn't receive it — only for this instrument

  • Your broker order history shows a rejection code on a specific instrument

Confirm the issue is instrument-specific

First, check whether other instruments in the same copy group are replicating correctly. If they are, the issue is specific to this instrument rather than a general connection or replication failure.

Identify which accounts are affected

Use this table to narrow the likely cause:

Pattern

Likely cause

All followers not copying, leader executed

One or more follower firms restrict the instrument

Some followers copying, others not

Specific firms or accounts restrict the instrument

Leader also not executing

Leader's firm restricts the instrument or contract size

All accounts affected

Instrument restricted across all firms, or contract size exceeds limits everywhere

What to check with your prop firm

Contact each affected prop firm directly and confirm:

  1. Is this instrument currently on your approved tradeable list? Prop firms can change their instrument lists without advance notice.

  2. Have there been any recent announcements about instrument restrictions? Metals (Gold, Silver) in particular have seen restrictions from multiple firms recently.

  3. Is the contract size within the firm's current limits? Firms occasionally reduce maximum contract sizes — an order that was within limits before may now exceed the new threshold.

Tradecopia relays whatever the leader executes to all followers — each broker then processes the request independently. If a firm doesn't support the instrument or the order exceeds their contract size limit, their broker rejects the order. This is a firm-side or broker-side outcome; Tradecopia cannot override it.

Check your broker order history

Log into the affected follower accounts directly on the broker platform and check the order history for rejection messages. A rejected order will appear with a reason code that confirms whether the rejection is instrument-related, size-related, or something else.

This is the fastest way to confirm the cause before contacting your prop firm.

If a follower ends up with a position the leader doesn't have

In some cases, Tradecopia relays the order to all followers before the leader's broker confirms whether the leader's own order was accepted. If the leader's order is then rejected — but a follower's broker already accepted it — the follower holds an open position that the leader does not.

If you have the Position Reconciler enabled, it will detect this mismatch and close the orphan position automatically. If the Position Reconciler is not enabled, the follower position remains open as an orphan.

See Why is my follower account holding a position that the leader didn't open? if you need to resolve an orphan position manually.

If the instrument is confirmed supported and replication still fails

If your prop firm has confirmed the instrument is permitted, the contract size is within limits, and replication is still failing for this instrument specifically, contact the Tradecopia support team with:

  • The affected accounts and brokers

  • The instrument and approximate time of the failed trade

  • Any rejection messages from your broker order history

  • Confirmation from your prop firm that the instrument is currently approved

Related articles

Did this answer your question?