Liquidation triggered even if I placed a stoploss order

For a short order, to avoid liquidation, assume the liquidation price is “1.2”, I’ve placed a SL order via API with stopPrice=1.15 and limit price=1.15, but I still got liquidated when the price suddenly jumped above 1.2, why the SL order is not triggerd? Thanks.

And after liquidation, the SL order got expired:
status:EXPIRED
timeInForce:GTX
type:LIMIT
reduceOnly:True
closePosition:False
side:BUY
positionSide:SHORT
workingType:CONTRACT_PRICE
priceProtect:FALSE
origType:LIMIT
price…

Please feel free to contact customer support to review the liqudiation or any order.

Thanks,