Normal Maps don't render correctly with Physical Material

[Cobra8472_1]

Steps to reproduce:

Physical material with either standard Normal Bump or CoronaNormal applied to physical material.

Normal map will appear fine with the Autodesk ART renderer, but incorrect with Corona.
Switching to a CoronaMaterial with the exact same Normalmap setup works fine.

Corona 1.5 Dailybuild Sep 20. Max 2017.

[Ondra_1]

works fine here, can you post a scene? attached is “left ART mtl, right corona mtl”

[Ondra_1]

unable to reproduce