Apply animation asset cause "scaling"?

Well, I have a little fbx that when I put on scene it have a certain size, if I choose to animate it using “use animation asset” and choose the animaiton then it get scaled down even that the animation doesnt contain scaling (at less from within blender).

So whta Im doing wrong?

Im using UE4 4.12.5.

I attach the offending fbx… o well… not xD… forum doesnt let me do that. Well, here the link

this happen when mesh and skin modifier have different 0 frame position saved, also Freeze Transform bones not applied before skinning… this is my experience inside 3ds max.