Please don't discuss using versions of the game not downloaded from the Google Play Store or the App Store. Unless the game is downloaded from those official locations it is not supported by Hidden Variable.
Sorry to be a wet blanket, but come on. You're on the official forum for the game here.
EDIT: We decided to lock this thread as the Nox App is still an unsupported platform. Please only discuss versions of Skullgirls Mobile downloaded directly from Google Play and the App Store without going through any third parties like this.