When experiencing problems, it is sometimes useful to run a file "in the air".
This means running a file as you normally would, but with no material on the table to cut.
Most of the time, it is acceptable to run the file with no material on the table.
In a situation where the material must stay on the table, the Z axis origin can be raised so the file will run above the material. If this is to be done, please ensure that the new Z origin will not cause the machine to hit the end of travel.