If you’re using Illustrator, you need to do a couple of things:
In Illustrator, you have to Embed the images. Select the image, click on the Embed button that appears in the top row. Then follow the instructions on how to save an SVG file from Illustrator in the tutorial below. (Make sure to watch what’s checked and selected in the options to prevent resizing.)
Second - I don’t know if you are planning to use the red line for a cut or an engrave, but if it is a cut…that file is going to cut out twice around the image. That’s a series of filled short segments set to engrave, not cut, and it’s gonna get absolutely torched.
If you intend to use it as an engrave, it might still cause some issues, because it looks like the segments overlap. The GFUI might blank out any overlaps. So just something to be aware of.