On the android mobile app for Dash Wallet (hashengineeringsolutions); I've successfully imported from paper an x amount of 'dash'. Unfortunately, before I could create a backup, upon re-opening the app, the funds were gone. It seems that the app generated a new private key and somehow lost the link to the private key holding the funds. Is there any possibility (potentially a system folder?) to restore the previous private key and gain access to the funds? Much appreciated.