I exported the attached fbx from blender. It opens successfully in the AutoDesk QT viewer and a few other 3D viewers I found on Google. Both assimp and assimp viewer fail to read it, and neither prints why it fails. I stepped through it and it looks like we\'re failing in FBXDocument.cpp:
// id=0 is normally implicit
if(id == 0L) {
DOMError(\"encountered object with implicitly defined id 0\",el.second);
}
I\'m not familiar with the format, so I\'m not sure what this means.
See https://github.com/assimp/assimp/issues/98