lack of geometry on the render, but not in the viewport I've got a scene with paper sheets moving along paths (with a modifier).
But there is something weird : while everything looks fine on the viewport, it seems that there is a lack of geometry when rendering (we can see kind of horizontal lines on the paper).



I checked : I have soft shading enabled on the meshes, I have a subdivision modifier enabled (on render too), and I also checked the resolution of the curves (12 on preview, 0 on render)

So why this ?

Thanks !
Seems that this is happening because I use 'Simple' subsurf, not 'Catmull-Clark' !

Anyway, seems there is a bug since it doesn't look the same in the viewport... ?