Multi ojbects animation

Is there is a way to import animation of tow objects linked by constraint (ex. copy rotation) from fbx exported from blender?
everytime I try so I end up with tow objects and only the main object animated and the linked one is not animated!
Is there is a way to go around that? or is there is any other pipeline I can go through to have the constraint base animation objects that I created in another 3d software to be imported as it is in UE4?

in AnimGraphs of animation blueprints, you can transform bones:

controlling 2 bones by the same rotation variable might solve your problem.