Qidi Tech 1 - Replicator 1 clone

[Syd_Khaos]

HELP!!!!

I am trying to print this:
http://www.thingiverse.com/thing:831200

I have got all the parts but 1 printed. The one part I can not get done is 'LH_Green_Cape_body3'.
When sliced in S3D it is missing s big section of the model, making unprintable. Prior to slicing it looks as it should on the plate.

Here how it looks preslice:


Here is it sliced:


I can see NO errors in the model. Have even loaded it into Blender and confirmed its 100% manifold and all normals are facing the right way.
Any ideas??