Maybe share the SVG so others, including IA, can take a look.
This thread, Improved SVG Importing & Rendering, and Convert To Drawing - #26 by mperkins, might be a good place to post as well if you think Ignition is somehow to blame, although, as simple as your SVG looks, I bet it is something you did wrong in the process.
If that SVG had to be redrawn it shouldn't take but a few minutes. Not sure what you use, but try Inkscape.