Import fbx animation

Hi All

I am quite new into unreal.
I have a fbx animation (-there are 4 squares which appear one by one in order link text) which came from 4d modelling software and I want to bring it into unreal but every time I tried to do it unreal crushed.
I imported it into 3ds max and exported from there but the animation doesn’t work anymore.
I have attached the file.

I would really appreciate any clue how I can solve it.

PS. this is only small test file. The one which I eventually want to bring in is much more complex.

Many Thanks