I just noticed (in a painful way) that the Bake Geometry Textures COP defaults to DirectX normals instead of OpenGL.
Or in other terms: The green channel is set to "Green down", which is another way of saying "DirectX normals".
I wonder why this is the case as just about any offline renderer (Arnold, Cycles, V-Ray and especially Karma) uses OpenGL / green up normal maps.
Is that an oversight or is there a deeper reason for this?
EDIT: And I just noticed that the Preview Material COP expects DirectX normals. :P