Wrong point or backhand out of stop loss. Backhand is to close the existing position and bill in the opposite direction at the same time. For example, there is 1 hand to pay the bill. The result of backhand operation is that the account has 1 hand to sell. The specific process is to sell the first hand and open 1 hand.

Simply understand that you can see that selling 2 lots of Kaiping has been automatically selected.

Generally, backhand pursues the fastest transaction with the opponent.

Stop loss setting is another matter.