The extensive ghosting that you first reported as been corrected in 4.10.1. What you are seeing now is a limitation of the TemporalAA and extremely repetitive flat textures on a surface. The engine is trying to give you the correct Sharpness of the Mip Map Level on the texture while also trying to blur the motion of the character.
There are two possible corrections that can be made that will limit the amount of ghosting that you are seeing. The first is to use FXAA instead of Temporal AA, this will completely remove the Ghosting as you are no longer using the system that generates it.
The other is to adjust the material where you are seeing the ghosting to a) be less repetitive or b) less sharp. By Less Repetitive I mean providing a visual breakup, like dirt on the ground or different variations of grass in a field. The key here is to layer various textures together to yield a result. This can be done with Decals, in the Material or with multiple objects (like foliage). By less sharp I mean adjusting the MipMap setting of the texture(s) in the Texture Editor to be less sharp (r.MipMapLOD Bias can be used for testing as a console command)
Thank You
Eric Ketchum