Strange slicing on particular model

[roguemat]

I'm getting pretty good results overall compared to Cura and Slic3r.
But one exception is: http://www.thingiverse.com/thing:1388237

Cura on pretty much default settings does a decent job. But in S3D it slices it really weirdly - instead of building up the object with solid lines, it creates it by putting very small lines and dots everywhere, even on the base where it seems obvious that that is wrong. This leads to the face having large holes in it, and the entire part being brittle.
I was able to crush it in one hand easily, and it just crumbled apart.

[Heutinck]

try running it through an online repair site.