This problem may cause from improper setting of the software.
Please start up the laser software RDWorksV8. And then click “Config” – “system setting” on the menu bar. This dialog box appears.
Make sure “Axis X mirror” is unticked, and “Axis Y Mirror” is must ticked.
If your setting is different from this, this is the problem why your cutting/engraving reverse. Just reset the config as above.