I have a number of SVG files I would like to edit. They open in AD, but some objects are missing. These same images open and display properly in Inkscape. The SVG file is the initial source file. The afdesign file is what I get in AD. You may have to open the SVG file in a 3rd party editor to see the differences. Basically some of the small circles and squares are missing. Also, yours is not the only application that has difficulty with these files (Corel Draw for example).
PWR770_A Mid Layer 1_m.afdesign
PWR770_A Mid Layer 1.svg