Yup, file attached...
... and with the latest exporter (5.7.1) this scene became totally unusable - error is all i get:
Traceback (most recent call last):
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\engine.py", line 356, in render
render_start( self, scene)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\engine.py", line 38, in render_start
render_scene( engine, scene)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\engine.py", line 195, in render_scene
result = bpy.ops.corona.export()
File "C:\programi\b278c\2.78\scripts\modules\bpy\ops.py", line 189, in __call__
ret = op_call(self.idname_py(), None, kw)
RuntimeError: Error: Traceback (most recent call last):
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\operators\export.py", line 42, in execute
result = export(self, scene, placeholders)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\export.py", line 547, in export
return _write(self, scene, filepath, curves)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\export.py", line 580, in _write
result = future.result(timeout = None)
File "C:\programi\b278c\2.78\python\lib\concurrent\futures\_base.py", line 405, in result
return self.__get_result()
File "C:\programi\b278c\2.78\python\lib\concurrent\futures\_base.py", line 357, in __get_result
raise self._exception
File "C:\programi\b278c\2.78\python\lib\concurrent\futures\thread.py", line 55, in run
result = self.fn(*self.args, **self.kwargs)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\export.py", line 637, in _export_object
result = decide_format( self, full_path, obj, scene, curves)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\export.py", line 515, in decide_format
return write_binary_obj( self, obj_path, obj, scene, curves)
File "C:\Users\py\AppData\Roaming\Blender Foundation\Blender\2.78\scripts\addons\render_corona\export.py", line 1223, in write_binary_obj
if faceuv or facecol:
UnboundLocalError: local variable 'faceuv' referenced before assignment
location: C:\programi\b278c\2.78\scripts\modules\bpy\ops.py:189
location: <unknown location>:-1