Had the same issue with the Xbox One S controller. https://www.instructables.com/id/Fixed-Setup-for-Xbox-One-Bluetooth-Controller-With/ This fixed it for me, but I suggest that you keep it connected via USB and ditch bluetooth. If you connect it back via USB cable (because you wanna charge it), once you're battery is charged, and you unplug it, you will have to remove it from devices and register it again... it's a pain in the butt.

@NoobAtEverything Why are you asking this in the RetroPie forum ? This is not a Android/mobile gaming community and you'd have better luck asking in a dedicated forum for Android.

@mitu thanks for the input. I will order the 710 from amazon. You have been most helpful, and I appreciate your patience.

Hi Guys My Controller is finished and it work very well wireless YEAH Here are some Pictures of it:

Default behaviour is to assign controller number in the order of connection. You could use the @meleu 's joystick-selection script (available from experimental packages) to map your controllers by core (ie snes pad for snes games).

@wardh Did it work!

@retronoobie3000 Have you tried @meleu joystick selection script - https://github.com/meleu/RetroPie-joystick-selection ?