Issues

• get_true_north can't distinguish unstated true north from +Y

  IfcOpenShell/IfcOpenShell#10126 · Filter by author Amixx opened on Nov 4, 2026

• Bonsai: snapping on a curve object creates a new object on every mouse move and never removes it (Blender freezes)

  Bug

  IfcOpenShell/IfcOpenShell#10121 · Filter by author h-v-b opened on Nov 3, 2026

• IfcConvert fails to parse a >2 GiB IFC on Windows x64: crash in 0.8.5 and "vector too long" in 0.9.1

  Bug

  IfcOpenShell/IfcOpenShell#10119 · Filter by author JungHoGyeong opened on Nov 3, 2026

• remove_deep2 regression: deleting large tessellations freezes again

  PR Proposed
  IfcOpenShell/IfcOpenShell#10117 · Filter by author theoryshaw opened on Nov 2, 2026
  1

• Bonsai: auto storey level marks lose their side when the storey height changes, and keep their width when the drawing is resized

  Bug

  IfcOpenShell/IfcOpenShell#10114 · Filter by author SautaRoc opened on Nov 2, 2026

• REGRESSION: MaterialProfileSet assignment destroys IfcStructuralCurveMember edge topology

  Bug

  IfcOpenShell/IfcOpenShell#10112 · Filter by author balrobs opened on Nov 1, 2026

• Geometry iterator ignores a material's IfcSurfaceStyle when its IfcMaterialDefinitionRepresentation has more than one IfcStyledItem

  IfcOpenShell/IfcOpenShell#10111 · Filter by author GeneralPawz opened on Oct 31, 2026

• Bonsai: ortho_view_frame treats ortho_scale as the width, so the frame of a portrait drawing is wrong

  Bug

  IfcOpenShell/IfcOpenShell#10110 · Filter by author SautaRoc opened on Oct 31, 2026

• Error saving IFC file

  Bug

  IfcOpenShell/IfcOpenShell#10109 · Filter by author ddhunt16 opened on Oct 31, 2026

• Bonsai: Update Representation fails on a type object with a stale mesh

  BonsaiPR Proposed
  IfcOpenShell/IfcOpenShell#10099 · Filter by author theoryshaw opened on Oct 30, 2026

• Bonsai: add a preference for a new drawing's default Metadata

  PR Proposed
  IfcOpenShell/IfcOpenShell#10097 · Filter by author theoryshaw opened on Oct 30, 2026

• get_reference_line ignores Axis representations in "Model" contexts (Revit/ArchiCAD exports), and regenerate_wall_representation silently rebuilds walls from the 1 m fallback axis

  Bug

  IfcOpenShell/IfcOpenShell#10089 · Filter by author j-bostrom opened on Oct 29, 2026

• IFC Openshell Python version 0.9.0.post.1 dropped many IFC schemas

  Bug

  IfcOpenShell/IfcOpenShell#10086 · Filter by author JR-Morgan opened on Oct 28, 2026
  3

• Bonsai: numeric IFC attributes lose precision when edited via Edit Attributes (float32 truncation)

  Bug

  IfcOpenShell/IfcOpenShell#10085 · Filter by author SautaRoc opened on Oct 28, 2026

• Bonsai: prefer parametric extrusion over tessellation when an extrudable mesh gets an IFC class

  Feature

  IfcOpenShell/IfcOpenShell#10082 · Filter by author SautaRoc opened on Oct 28, 2026

• BugReportBonsai001

  Bug

  IfcOpenShell/IfcOpenShell#10077 · Filter by author wshingtonBR opened on Oct 27, 2026

• [geom] Void on open IfcTriangulatedFaceSet (Closed=.F., e.g. TIN terrain): OpenCASCADE adds faces of the opening body, CGAL returns empty geometry

  IfcOpenShell/IfcOpenShell#10076 · Filter by author M-H-H-B opened on Oct 27, 2026

• Boundary conditions panel: column widths badly distributed – IfcBoolean column huge, value column unreadable

  Feature

  IfcOpenShell/IfcOpenShell#10075 · Filter by author balrobs opened on Oct 27, 2026

• Pset_ProfileMechanical: no units shown when editing values – unclear which units to enter

  Feature

  IfcOpenShell/IfcOpenShell#10074 · Filter by author balrobs opened on Oct 27, 2026
  2

• OpenCascade kernel: halfspace box margin is precision x 1e6 (10 m), box corners leak as spikes on thin clipped solids

  IfcOpenShell/IfcOpenShell#10073 · Filter by author sebgoubier opened on Oct 27, 2026
  2

• Bonsai error

  Bug

  IfcOpenShell/IfcOpenShell#10063 · Filter by author pecot opened on Oct 26, 2026
  1

• regenerate_wall_representation silently turns a curved wall into a short straight wall

  Bug

  IfcOpenShell/IfcOpenShell#10062 · Filter by author h-v-b opened on Oct 25, 2026

• Bonsai: project opens with an empty scene when a LINKED_MODEL IfcDocumentReference has a non-matrix Identification

  Bug

  IfcOpenShell/IfcOpenShell#10061 · Filter by author h-v-b opened on Oct 25, 2026

• Bonsai: set a default geometry library, and reload with a different one, from the UI

  PR Proposed
  IfcOpenShell/IfcOpenShell#10057 · Filter by author theoryshaw opened on Oct 24, 2026

• AttributeError: IfcPropertySingleValue has no attribute 'Description' when saving Pset as template (IFC4X3_ADD2)

  Bug

  IfcOpenShell/IfcOpenShell#10056 · Filter by author Ryzhov-Roman opened on Oct 24, 2026
  3