Stop loss isn't reliable in futures folks. It is much safer to depend on your trade size to control the risk.

When you choose certain stop loss, the system will trigger it if it is hit. However, your position must find the same value to sell to.

For example, if you bought $BNB and ser stop loss at 900 but no one is buying at 900, your stop loss will trigger and sell to the next point. So, you may end up selling to 850 instead of 900 and lose more depending on the market. So, control the risk by the volume of your trade.