Toolpath cutting passing through finished work

Hi - having an issue on the finishing cut from a model I worked up in Sketchup and used CAMLAB to generate both the rough and finishing cuts. There are three gouges in that the machine made in the finishing job that I can’t figure out. Using a gcode visualizer there is no indication that the machine should be running a path through the workpiece.

You can see the three gouges in the image labelled Front. It appears the machine moved through the finished workpiece outside of the gcode? Is that even possible?

Any ideas? Thanks!