Sometimes free DXF files have "leaks" or open paths. Before cutting, use software like LightBurn, Vectric VCarve, or Fusion 360 to "Join" all vectors.
Because CNCFiles4All functions by aggregating files from various open sources, there are a few things to keep in mind: cncfiles4all free
The universal standard for CAD and CNC machining, mapping out precise vector lines for your toolpaths. Sometimes free DXF files have "leaks" or open paths