I am looking at the tap, it has reached 0.0197 0.0198 already, and when the order stops at 0.0198, I see it immediately.

Can everyone help me? I set the stop at 100u but it has gone through 70u, 80u several times and hasn't stopped. Suddenly, it closed the order with a profit of 45u and I don't quite understand, I hope everyone can explain. I set it at 0.02 stop.