Sorry, my issue is on export.
Traceback (most recent call last):
File “/Applications/Blender/blender.app/Contents/Resources/2.75/scripts/addons/io_scene_fbx/init.py”, line 507, in execute
return export_fbx.save(self, context, **keywords)
File “/Applications/Blender/blender.app/Contents/Resources/2.75/scripts/addons/io_scene_fbx/export_fbx.py”, line 2902, in save
return save_single(operator, context.scene, filepath, **kwargs_mod)
File “/Applications/Blender/blender.app/Contents/Resources/2.75/scripts/addons/io_scene_fbx/export_fbx.py”, line 2656, in save_single
context_bone_anim_mats = [(my_ob.getAnimParRelMatrix(frame), my_ob.getAnimParRelMatrixRot(frame)) for frame in range(act_start, act_end + 1)]
File “/Applications/Blender/blender.app/Contents/Resources/2.75/scripts/addons/io_scene_fbx/export_fbx.py”, line 2656, in <listcomp>
context_bone_anim_mats = [(my_ob.getAnimParRelMatrix(frame), my_ob.getAnimParRelMatrixRot(frame)) for frame in range(act_start, act_end + 1)]
File “/Applications/Blender/blender.app/Contents/Resources/2.75/scripts/addons/io_scene_fbx/export_fbx.py”, line 357, in getAnimParRelMatrix
return (self.parent.getPoseMatrix(frame) * mtx4_z90).inverted() * ((self.getPoseMatrix(frame)) * mtx4_z90)
ValueError: Matrix.invert(ed): matrix does not have an inverse
location: <unknown location>:-1