I think I figured it out. It's kind of difficult to explain. I suspect that circular territories lose their shape because of their nods. If you use the circle tool on the left toolbar and create a circle, it doesn't have nods. I don't know what gives the circles nods because I'm not adding them in the first place, but it seems to happen after uploading your SVG to warlight a second time. If that makes sense.
Edited 2/25/2020 08:09:18
Need help. New map almost complete.: 2/25/2020 18:51:49