When exporting an Inkscape file to SVG, the layers are renamed to "Layer_1", "layer_2" etc. rather than using the inkscape layer name. The Inkscape layer name is stored as metadata that is ignored by all other Vector graphics programs such as Illustrator.
Please, please just set the ID to the inkscape layer name! If you need to, append an "_1", "_2" to each name to keep them unique.
You will be saving the sanity of many armchair Inkpad lovers like myself!
Example: (please note that I swapped out the GreaterThan and Lessthan with [ and ] so this would post)
How it works now:
[g id="Layer_2" inkpad:layerName="Left leg"]
How it should work:
[g id="Left leg" inkpad:layerName="Left leg"]