Microsoft is aware of unresponsive issues affecting some Xbox Wireless Controllers and is looking into a fix.
Luckily, Microsoft is aware of the issue and is looking into it, but a timeframe was not provided (thanks, PC Gamer).
“We are aware some players may be experiencing unresponsiveness with their new Xbox Wireless Controllers and our teams are actively working on a solution.
There are apparently some issues with the newest version of the Xbox Wireless Controller.