SVG rendering problems and doubs

[ChrisW67]

I took a look at the paths defining the left table and it struck me that it was dictating a lot of moveto (m) commands that don't (shouldn't) draw, and a few lineto (l) and circle (c) commands that do. The line and circle commands are your outer border.

<path
       id="billBg_original"
       style="fill:#f0f0f0;stroke:#000000;stroke-width:1.77165353000000003;
                 stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;
                 stroke-opacity:1;stroke-dasharray:none;fill-opacity:1"
       d="m 495.27339,970.73588 0,-358.53854 
            m -71.27008,324.1224 0,-324.21608 
            m 158.9011,358.77089 -511.991713,0 
            m 511.991713,-34.25 -511.991713,0 
            m 511.991713,-324.5625 -511.991713,0 
            m 511.991713,-22.52773 -511.991713,0
            m 511.991713,-69.55806 -511.991713,0 
            m 511.991713,-54.68568 -511.991713,0
            m 255.995853,-139.98177 0,139.96355 
            M 80.901962,325.27594 
            l 492.013188,0 c 5.54,0 10,4.46 10,10 
            l 0,669.17246 c 0,5.54 -4.46,10 -10,10 
            l -492.013188,0 c -5.54,0 -10,-4.46 -10,-10 
            l 0,-669.17246 c 0,-5.54 4.46,-10 10,-10 z" />

<path
       id="billBg_original"
       style="fill:#f0f0f0;stroke:#000000;stroke-width:1.77165353000000003;
                 stroke-linecap:square;stroke-linejoin:miter;stroke-miterlimit:4;
                 stroke-opacity:1;stroke-dasharray:none;fill-opacity:1"
       d="m 495.27339,970.73588 0,-358.53854 
            m -71.27008,324.1224 0,-324.21608 
            m 158.9011,358.77089 -511.991713,0 
            m 511.991713,-34.25 -511.991713,0 
            m 511.991713,-324.5625 -511.991713,0 
            m 511.991713,-22.52773 -511.991713,0
            m 511.991713,-69.55806 -511.991713,0 
            m 511.991713,-54.68568 -511.991713,0
            m 255.995853,-139.98177 0,139.96355 
            M 80.901962,325.27594 
            l 492.013188,0 c 5.54,0 10,4.46 10,10 
            l 0,669.17246 c 0,5.54 -4.46,10 -10,10 
            l -492.013188,0 c -5.54,0 -10,-4.46 -10,-10 
            l 0,-669.17246 c 0,-5.54 4.46,-10 10,-10 z" />

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(line wrapping is mine)
When I used the Path/Break Apart option in Inkscape and readjusted the depth the missing lines were drawn. The SVG got a bit bulkier with multiple paths. Inkscape may be doing something odd with these paths when combined

I drew my complex grids as a collection of rectangles and lines rather than one compound path.