shuttle example - export rendering as glb not working as expected

Hi,
Just adding the following piece of script at the end of the shuttle example:
glbdata = session.geometry()
with open("simple_example.glb", "wb") as fp:
fp.write(glbdata)

Results in .glb file like this:

Wondering if somebody know how to make the glb including all the expected renderables from the shuttle example?
Best,
P.S. Actually, the legend is also not visible in the glb (only using the GUI and exporting as .AVZ)

Start with the shuttle example and the `session.geometry()` call shown in the report, then investigate how that export represents the example's renderables. Compare the generated GLB with the GUI's AVZ export; done means the expected renderables and legend are present in the GLB.

Written by the indexing model from the issue text.