Sorry for my late reply.
The latest firmware now is 1.9.0. Snapmaker 2.0 Firmware Updates and Downloads
How long does the X works before it stops?
Did you try another gcode?
After it stops, if you go to home, will the X-axis work?
Can you export the log? Here is a video about how to export log. https://drive.google.com/file/d/189CIUW4D4o_Qm2mY2j63N3rKzn7n3zZp/view
The log will go to USB stick.