I've searched and not been able to find anything on the issue we are seeing.
On sports resort wakeboard game, one of our controllers will fade out, it stops responding for 30 seconds or so to jumps, you end up just sliding back and forth or in the middle of the waves then it will snap out of it and work again. This is only happening on 1 of our remotes, both are nintendo controllers.
I've tried resyncing, batteries,etc. the other controller works perfectly so its not an issue with light or sensor bar,etc. I think we have also seen the non responsiveness in Boxing as well thinking about it.