If you have been having issues lately playing any of your Backwards Compatibility games on your Xbox One preview builds, don’t worry about it, Mike Ybarra has posted on Twitter to say that they are aware of it and are in the process of looking into it.
Hopefully it won’t be too long before this little snag is sorted.
We’re aware of BC issues with Preview builds. Working on it. #Xbox
— Mike Ybarra (@XboxQwik) June 24, 2016