Operating system: Windows 10
Blender Version
Broken: 2.8 latest master
Short description of error
In many (majority) of cases, Blender's .abc exporter doesn't properly export smoothing groups.
This is the exported model:
The exporter settings are explicitly configured to export all the face shading properties and normals:
The same model reimported into same version of blender using the same .abc file that was exported:
Exact steps for others to reproduce the error
1, Open the file:
2, Export it as .abc format. Make sure to enable all the options related to normal export
3, Import the exported file back to blender.
Result:
Face normals are gone
Expected:
Face normals are preserved
UPDATE: It appears that GLTF format has the same problem.