My 1778-point short order was in hand at the time, and it had a floating profit of more than 100 US dollars. As a result, no operation order was inexplicably stopped. The highest point was 1778.66. My stop loss was 1780.7. There was no compensation for the profitable order, which resulted in a loss. serious. The follow-up verification was a system problem. As a result, the platform problem did not give me a refund. Instead, the empty order was returned at a high position the next day, resulting in serious losses. The customer service did not give an explanation. There is no apology. I don't understand whether the slippage is serious or maliciously making investors lose money.