What do i for this mesh problem?

Hi, i’m doing develop using leap motion, and i bring custom model using autodesk fbx converter, like this, and apply animation.

276732-mesh.png

But that is displayed like this in animBP preview

276733-display.png

So, what do i for this, so overly thin result, to change to normal?
need help!

additionally to preview, that is tracking my hand (applying animation), not default.