Animation from Maya: unwanted ghosting

Hello!

I have a little problem here I can't solve. I made a scene in Unity to test animation import with a quick animation I made with mocap. In Unity, the animation works, I can see the character moving, but the movements have a kind of ghosting. It's a bit hard to explain, so images are better than long sentences:

http://www.youtube.com/watch?v=NypGQLtYEWA&feature=youtu.be

The screen capture made the animation slower than it really is, but the ghosting is clearly visible. (Oh, and don't pay attention to the scene or interpenetration with the cap and the head, it's just a test scene)

How I did to import the animation:

• Mocap

• Retouch the mocap in Maya

• Assign mocap to character still in Maya

• Export in FBX file

• Import in Unity the FBX file

I try to import too the .mb whole scene, but it didn't solve the problem. So I thought it was because of my pc performances, so I made a quick build and run to test with diffrent quality settings, but it didn't change anything.

Does anyone have a solution to remove this ghost? Is the problem caused by the fact there is a key for each frame? In that case, can Unity optimize by himself the keys or should I do it myself?

Thank you very much in advance, I'm totaly stucked on this since yesterday!

Signed: a desperate 3D generalist who's discovering Unity