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IfcConvert fails (exit 1, "Type held ... is Blank and not string") when an IfcElementQuantity has a blank GlobalId

Status: Open.

Bug

#9600 In IfcOpenShell/IfcOpenShell;

· joao-pinto-capmo opened on Sep 25, 2026

Bug Report

Bonsai

Status: Open.

Bug

#9595 In IfcOpenShell/IfcOpenShell;

· Gustavo-Github opened on Sep 24, 2026

Bonsai: editing one window deletes (or resizes) the opening of another occurrence of the same type (update_simple_openings)

Status: Open.

#9591 In IfcOpenShell/IfcOpenShell;

· M-H-H-B opened on Sep 24, 2026

bim.add_aggregate fragments aggregates when parts are selected

Bonsai

PR ProposedA PR has been proposed for this bug/feature.A PR has been proposed for this bug/feature.

Status: Open.

#9588 In IfcOpenShell/IfcOpenShell;

· theoryshaw opened on Sep 24, 2026

IfcConvert segfaults on IfcDoorLiningProperties/PanelProperties during JSON export

backport-0.8

Status: Open.

Bug

#9583 In IfcOpenShell/IfcOpenShell;

· joao-pinto-capmo opened on Sep 24, 2026

Refresh Linked Aggregate crashes on a nested assembly that isn't a linked aggregate

Bonsai

PR ProposedA PR has been proposed for this bug/feature.A PR has been proposed for this bug/feature.

Status: Open.

#9582 In IfcOpenShell/IfcOpenShell;

· theoryshaw opened on Sep 24, 2026

IfcSweptDiskSolid tessellation: start end cap wound inside-out — mesh volume depends on directrix direction (0.99 vs 0.33 for the same bar)

Status: Open.

#9571 In IfcOpenShell/IfcOpenShell;

· aricoleman opened on Sep 23, 2026

create_shape misreads an IfcAdvancedBrep box with a cylindrical through-hole: volume +12.9 % (web-ifc and OCCT read the same file exactly)

Status: Open.

#9570 In IfcOpenShell/IfcOpenShell;

· aricoleman opened on Sep 23, 2026

ifcopenshell.api.type.assign_type raises TypeError

Status: Open.

Bug

#9566 In IfcOpenShell/IfcOpenShell;

· PahlawanJoey opened on Sep 22, 2026

Bonsai / Calendar

Status: Open.

Bug

#9565 In IfcOpenShell/IfcOpenShell;

· Manfred-Schmidt-555 opened on Sep 22, 2026

Bonsai: renaming a sheet or drawing without saving leaves the model pointing at files that no longer exist

Status: Open.

#9556 In IfcOpenShell/IfcOpenShell;

· theoryshaw opened on Sep 20, 2026

Bonsai: a web API for tools that display and edit sheets without building them

Status: Open.

#9554 In IfcOpenShell/IfcOpenShell;

· theoryshaw opened on Sep 20, 2026