Hi,
As you can see from my issue, exporting static mesh for each frame results in uncontrollable problem: the mesh points aren’t semantically aligned between frames.
Hence, I will recommend exporting the morphable mesh(something that u can control and drive in other 3d software such as maya or 3dsmax) firstly.
Then, u can export the sequence of animation. Using the sequence data, u can drive that mesh in maya, from which, u can obtain the mesh points of each frame more stably and relatively easily.