The response time for opening and closing positions can be as long as 30 seconds. After a position account is profitable, the trading function is cancelled, making it impossible to open or close positions or set stop-loss and take-profit. Once the profit reaches a certain amount, the account will be closed directly. After setting the account balance for withdrawal, all my accounts were closed. The general explanation given is that if there is a bonus in the account, it is considered improper trading, and if there is no bonus, it is considered a system exception. After forcibly closing the position, the account will also be closed.