[Bug]: Inconsistent triangle winding order between Linux and macOS

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What happened?

When loading the same IFC file (https://github.com/ThatOpen/engine_web-ifc/blob/main/tests/ifcfiles/public/IfcOpenHouse_IFC4.ifc) on Linux and macOS, some triangles have opposite winding order. This causes visible rendering differences on Linux (left image) but render correctly on macOS (right image).

The vertex normals are correct on both platforms, but the triangle index order doesn't always match the normal direction. I found a workaround for my program: compare the geometric normal (from cross product) with vertex normals and swap winding when they disagree.
However there seems to be an issue in the lib, which should be fixed.

This may be related to #1670 which noted face orientation issues.

I'm using Ubuntu 24.04.3 LTS and engine_web-ifc 0.75

Version

0.75

What browsers are you seeing the problem on?

No response

Relevant log output

Anything else?

No response

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btw, I can reproduce this with other models, still same roof issue: