Windows 7 SP1
GTX 560 Ti
Broken: 2.73.2 6e97db7
Short description of error
I build some bones and add IK.
The IK Target is a Empty or another Armature's bone.
But Export FBX,Selection the mesh to FBX,and import to Unity3D,it will have many animation Source Task and all error.
And IF when export fbx without tick the All Action,the fbx will have not animation.
But in old version,it will bake and export the active timeline animation
Exact steps for others to reproduce the error
1.Build the mesh and Armature Empty or antoher Armature and add IK,set target.
2.Add some animation
3.Export FBX without or with Target object
4.Import to Unity3D
just like the image and project:
and the project is here: