I’m sorry about the trouble with your engrave results. I see you’ve already received some excellent information from our other community members. Thanks folks! It’s correct that variations in thickness or material which isn’t flat can impact print results. I also extracted the logs from your recent prints and noticed that a manual height was entered for the material thickness. As a next step, I would recommend trying the Set Focus tool.
The Set Focus target allows you to select an area to take a precision measurement of the material’s height using the red dot in the printer head. Use Set Focus and place the focus area on the material, so it’s not near an edge. Then watch to make sure the red dot hits the material.
Please let me know if the above improves your print results. Thank you!