According to shapeways there are thin wall problems to the point it basically deletes part of the model and creates massive gaps/holes etc. edit: when I say render, I mean when you upload the product. Not the material render, which also has holes in it See picture yet the render/mesh of it looks absolutely fine? I don't get where the problems are coming from. I've already ran it through netfabb, meshmixer, and various online tools to try and get a fix but it ends up the same. According to meshmixer, netfabb etc there are no holes. Now, shapeways initial checks pass and I can apparently order a print, but there's gonna be huge holes in it! how do I fix?