Stop Loss trigger - help needed

Hello, I would like to know if anyone has faced issues after putting stop loss. Lets say if we buy a stock at 70 with SL of 65, and this share suddenly falls down to 63. Are there any chances the SL will not trigger or what are the scenarios when the tool fails to exit at SL price (technical issues etc).

Please share feedback. Thanks.

if the stop loss order is limit order , then chances are there that it won’t execute .
if you want orders to be filled , you have to put stop loss market order