Open core: don’t reinvent the wheel — build your fenestration software on ours.

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  1. Nothing draws at all. The series has no X-section setup: confirm the Unit Part exists
    and its rules (level/position) match the node you expect the section on — frame vs sash vs
    mullion is the usual mismatch.
  2. The part has artwork but still nothing draws. Check the image is SVG — DXF is
    stored but never painted on the canvas. Also check the part’s description is exactly the
    image filename/path.
  3. The section draws in the wrong place. Adjust the ΔX/ΔY rules (301–318 range) and make
    sure they sit before the 319/320 placement rule in rule order; a transform rule after the
    placement rule is silently ignored for that section.
  4. The artwork is rotated or mirrored wrong. Expected — rotate/flip are recorded but not
    applied at render time. Replace the image with pre-oriented artwork.
  5. Glass is missing from the section. The opening is unglazed, or there is no glass-level
    rule for this position.
  6. Pressing × “deleted” my sections. It only hides them — press V or H to bring them
    back. Sections are only truly discarded with the design itself.