You are clearly through the powder. In fact, you are WAY to hot.You are damaging the stainless underneath. I use a 80w, and am around 275mm/min and 45% POWER which looks like about 13ma on my meter. Not that you have a test cup, try it at less power.
Also, you wont get clean results straight off the laser, You’ll need a little hand work. LA Totally Awesome and the magic eraser combo works fine. Amazon for both if you have trouble locating. Some say Zep 505, but LA work better, IMHO.
Here is my too hot test cup, before I figured out to go lower. These are Rtic, but the Ozark Trail Walmart I use the same.
Here is straight off the laser.
And cleaned up.