Not sure if it applies to every Core, but for example, using the Virtual Boy Core, I get to a certain point in the Game, it doesnt seem like there is any Game Saves happening, and if I try to Save a State, or even try to Load a State (in case Saving one was successful), I get dumped back to the very first Loading Screen when Opening the App where you either Load RetroArch or Quit RetroArch. Latest Version from Google Play 1.2.2 . Tried doing it with a Stable Build, but still not working. Nvidia Shield Portable Android Version 5.1
Edit: Also get a msg on Android 4.2.2 (Note Pro AT&T) when attempting to Save State that it fails to do so