Hmmm, your tjdredd.svg was OK, but the other 3 had nested segments, and Batman's leg was out of place. I updated those 3 SVGs and put them on my site. There are some nested segments in other SVGs; I'll fix those and let you know.
To fix the segments I loaded the SVG into Inkscape, clicked the segment, noted the title and description then cleared them, ungrouped, unselected the nested segment, grouped, then re-entered the title and description and saved. Then I checked the SVG again with my program.