My trading account saw a huge change in funds within less than a second from opening to closing an order. Suddenly, on the evening of August 19 through late night, the account had large-lot orders significantly higher than the usual trading volume. Subsequently, some accounts incurred huge losses or even got liquidated in a very short time. I looked at many signal sources and their copy trading accounts, and many accounts had similar large-lot trades." A disputed order: opened at 21:34:48, closed at 21:34:49 The holding time of this order was extremely short. The lot size of this order was significantly higher than the normal trading size of this copy trading account, and caused considerable losses in a short time. Why would a normal copy trade suddenly have such a large position? In the Newbridge Capital copy trading community, there is a 30% circuit breaker mechanism, but it was not triggered even at 30%.