OGC 3D Tiles Surface Colors created in FME Missing / Not Showing

[WaffleAycen]

What is the bug or the crash?

I created an OGC 3D Tile via FME from a CityGML (LoD2) Model, with added surface colors (roofs red for example). When adding the tileset to QGIS and viewing it in 3D all buildings and roofs are grey (uncolored). When viewing the same tilest in ArcGIS or the 3DCityDB Webclient the surface colors show as configured in the FME process. So this seems to be a QGIS related issue. Am i overseeing something?

Steps to reproduce the issue

1. Create an OGC 3D Tile with FME from CityGML with added Geometry Color via the GeometryColorSetter
2. Load the tileset.json in QGIS
3. Create a 3D View
4. Compare the tilesets appearance to ArcGIS or another viewer of choice

Versions

3.36.3

Supported QGIS version

• [X] I'm running a supported QGIS version according to the roadmap.

New profile

• [X] I tried with a new QGIS profile

Additional context

No response

[nyalldawson]

Can you share the tileset? I don't have access to fme.

[WaffleAycen]

Can you share the tileset? I don't have access to fme.

FME_3DTile_Example.zip