I love Indigo and I just love this superb tool Max2 indigo, but I have encountered a problem that I fail to solve.
Sometimes I get this kind of a strange seam that looks like having a two different smoothing groups on a surface. But there's only one from meshsmooth and no smoothing groups underneath (it renders correctly in any other renderer). I know that my mesh is not perfect, but I encounter this also on some better ones too. I have tried xml export and 3ds export as well. Still I get this seam.
Here's a poor render that I made, but the seam is quite visible (on a skull starting near the eyebrow and going to back of a head)

