How to import fbx contain multiple objects with their own animations

Thanks you for read my post, currently, i tried to import fbx form blender to unity, in blender i have three object, each object have its own animations with different bone, i imported all three objects in single fbx file and then imported fbx file into unity, i faced into a problem, in Unity i could see all my animations i made, and all rig i made too, but when i hited preview button, i could see that an animation i made for object 3 in blender now it play on object 1 in Unity, please help me.

A video of how it is supposed to look and how the preview animation plays in Unity would be helpful.