Duplicate orders and oversized positions on follower accounts are almost always caused by two trade copiers connected to the same broker accounts at the same time. If you were previously using another copier — whether cloud-based or set up locally on your own machine or VPS — it may still be running in the background even if you believe it was disconnected.
You might be experiencing this if:
Follower accounts are receiving doubled orders or positions larger than your multiplier should produce
Trades are being replicated to your followers even when Tradecopia is closed
Orders started duplicating after you switched from another trade copier
Position sizes on follower accounts are bigger than expected with no clear reason
Replication is happening on its own without any action in Tradecopia
If the unexpected size is on the leader account rather than the followers → see Why is my leader account showing more contracts than I placed? instead.
What is causing this
When two trade copiers are connected to the same broker accounts simultaneously, every trade on the leader is sent twice — once by each copier. Followers receive two instructions to open the same position, resulting in doubled orders or positions that are twice the expected size.
This is not a Tradecopia issue. Tradecopia is sending correct instructions. The duplication is caused by a second copier that is still active on the same accounts.
A common version of this scenario: you recently switched to Tradecopia from another trade copier — whether it was cloud-based or set up locally on your own machine or VPS. You removed your accounts from the old setup, but the previous copier still has active connections running in the background. Some copier setups — whether cloud-hosted or running locally — do not accurately reflect live connections on first load. Connections that appear deleted may still be active in the background.
A strong signal that this is your problem: replication is happening even when Tradecopia is completely closed. If followers receive trades without Tradecopia running, another copier is doing it.
How to confirm it
Close Tradecopia completely — not just minimised, but fully closed
Place a trade on the leader account manually through your broker platform
Check whether the trade is replicated to any follower accounts
If followers receive the trade → another copier is still active and must be disconnected before Tradecopia will work cleanly
How to disconnect the previous copier
Log into your previous trade copier platform's dashboard
Navigate to connected accounts, linked accounts, or broker connections
Refresh the page 5–10 times — do not stop at the first view. Known behaviour on other copier setups, whether cloud-hosted or locally run: connections that appear removed may reappear after multiple page refreshes, revealing live connections that were not surfaced on first load
Remove any accounts that reappear and repeat until they stay gone across multiple refreshes
Run the isolation test above again to confirm no copier is still active before proceeding
Once the isolation test confirms no other copier is replicating, reconnect your accounts in Tradecopia and resume normal use.
Best practice: Before connecting any new trade copier, fully disconnect all previous copiers and run the isolation test. Only one copier should have access to your accounts at a time.
Related articles
Why didn't my trade execute as expected? — full root cause catalogue for unexpected fills, missed orders, and replication issues
Why is my leader account showing more contracts than I placed? — if the unexpected position size is on the leader account, not the followers