PR:

### Problem Description

Revit 2024.3 + IFC exporter 24.2.20.0
While exporting groups of houses in bulk, from a large and scattered project (660mb), some Walls exported as Roofs (part of a dormer) sometimes lose there color. And in BIMcollab Zoom those objects also do not seem to have a material.
In the FZK viewer I can see that they do have correct material attached. But the Color from Entity is indeed different.
This RGB color should be related to the material from the Type in Revit. But it seems to be the RGB color from the Wall Object Type material.
When exporting again from the same project but even a smaller crop the problem seems to be resolved. I did expect the same result.
I would love to see that the color and material are connected to objects in a consistent way.


### Revit Version

2024.0.x

### IFC for Revit Addon Version

24.x.x

### Windows Version

11 22H2

No source files, tests, entry points, or reproducible project are named; begin by reproducing the export with Revit 2024.3 and IFC exporter 24.2.20.0 using the reported large, scattered project and compare the affected walls in FZK viewer and BIMcollab Zoom. Done means identifying and correcting the inconsistent exported material and entity color behavior, then confirming the result across the full project and a smaller crop.

Written by the indexing model from the issue text.