I've been struggling for several days to get hatches or solid fills to appear on my 2D plans using Bonsai (BlenderBIM) 0.8.4. I am working on a project in millimeters.

What I have done:
Created an IfcMaterial and assigned it to my walls.
In IFC Material Appearances, I added a Section Appearance.
I tried both Hatch (ANSI31) and Fill Area (Solid).
I've tried different scales (from 1 to 100) since I'm in mm.
I am using the BIM Documentation tab to "Create Drawing" and view the SVG.
The issue:
My walls remain white/empty in the generated SVG file. I suspect a "Context" issue or a scale problem that I can't figure out.
My setup:
Bonsai version: 0.8.4
Project units: Millimeters
OS: Windows
Does anyone have a checklist to verify why the IfcFillAreaStyle isn't being picked up during the SVG generation?

Thank you for your help!
Jey (from Guadeloupe)