A6400 and Ronin S issue

[tszabon]

I have an issue with a6400+Ronin S, when those 2 are connected AF with face recognition and steady shot becoming inactive. steady shot is not a problem because Ronin do it's job but lack of AF with face priority is a drawback. is there any solution to this?

[Notend]

I know that this is a very good model.