My xTool P2 started off perfectly! I was engraving and cutting 6mm transparent acrylic that came with the bundle I bought with the laser cutter. After a few hours, the laser would continue to engrave perfectly, but would not cut all the way through and instead would create the cut line and then another offset burn line. I did not change any settings when this happened. I went through and checked and cleaned the mirrors thoroughly and checked the calibration multiple times. I tried cutting the 3mm balsa wood that came with the bundle and (using the correct cut settings with material) got the same outcome. I’ve auto focused everything, made sure the slats are flat, airflow is at 100%. 

Does anyone know how to fix this?