Exported .reality from Reality Composer doesn't contain mesh/material data

I've discovered this issue in the past but a coworker brought up to me that he was having the same issue:

He created a .usdz from Substance Painter that was imported into a scene. He then exported the scene (or project) and RC exports out a .usdz that's like 25kb.

Is anyone else getting this issue?
correction:

RC exports out a *.reality file that's like 25kb.
Exported .reality from Reality Composer doesn't contain mesh/material data
 
 
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