Replicator projection material normals/primvars:normals

Hi there,

i would like to use replicators projection material to project images on a customized asset, which imported from a STEP file.
The problem i am struggling with is that my asset does not have normal3f, it only has normal3f primvars:normals.

So using replicator projection material, i get None trying to get the normal3f in
OgnCreateProjectionMaterial.py (line 75)

normals_combined.extend(cur_prim.GetAttribute("normals").Get())

and all in all the result is no projection.
So as far as i understand replicators projection material feature needs the assets normal3f.

Is there a way to get normal3f from my asset or run replicators projection material feature with normal3f primvars:normals, so i can use the projection material with my asset?