I have a problem when i create a walking animation cycle and exporting to .fbx file (even tried with .mb file) put i on unity3d and then animation changes very badly…
Bake simulation on joints, delete extra nodes, and export joints + model only.
That is the best way ever if you do not have any interaction on your IK or other rig in game.
Apply the same process on model + joint to export the character and joint only to export “animation only” and it will just work. o_<