I'm using a 50W fiber laser engraving machine. It has a raycus laser and uses ezcad 2 as the controller. I've been going through the rounds and engraving/ cutting brass/ titanium/ steel for awhile but suddenly today it decided to act up. For some reason the laser will not cut in certain locations? I will use the red light to mock up the location and sometimes it will not cut. If I moved the drawing around, sometimes it will cut, it is random. Sometimes if I go back to the object after cutting other parts it will cut again.... I'm at a lost.

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