Mesh not working

[Eddie1907]

Hi, I recently purchased Cubic Studio and am currently using if for a resource pack on my server. Most models work except for the every now and then mesh or texture missing. That is fine though because usually I work out what I've don't wrong. This time I haven't been able to fix it, nothing will load, all it is is a black and purple block instead of a 3d Xwing.
1. I have made sure the .json file is connected to the textures.
2. I have made sure to read any messages that come up while exporting and nothing seems to be wrong.
3. All voxels have been changed to elements with an atlas.
4. None of the elements go out of the 3 by 3 area.
5. The files are below.

Files: The 3d extras folder goes in the textures folder and the iron ore is the .json that is stuffing up.
https://www.dropbox.com/sh/3sigrrg6zjp4 ... 73PNa?dl=0