Help with an image file and carve

[DCHeels]

Hi all,

I'm having issues with this image and carve. The original artwork is from the website of a friend. I've copied the image, made it a transparent background, imported, and added to my pattern library.

I then outline the image and delete all of the unnecessary details to leave a simple outline shape that I want to carve. Everything *looks* ok and carves ok, but I'm getting these odd random straight lines carved into the material. They don't show up in designer on the workpiece or in the carving list but I assume they are some artifacts or garbage on the image.

Admittedly, this is not a great image file to begin with, but I thought I could get away with it by just carving an outline.

Any ideas or tips would be greatly appreciated. Thanks in advance.