Let me tell you more detailed. 

For example,  In cinema4d I create a simple cube. Then I add many segments in order to deform it. 

Then I choose a deform tool, such as bending. By this tool I bend the cube and add keyframe. When I press play button it works. No problem so far. 

BUT

I export  it in FBX format and check  ''bake animation'' option. 

When I import the FBX file to 3DXchange, the animation is not working. The animation is just 1 frame. 

Is there any way to manage that? 

Thank you.