First, make sure your device has the correct storage setting when using the app.  To do this, open the main app Settings, then tap Apps, Manage Apps. Next, tap on our app and then tap on App Permissions, then tap on Files and Media.  To turn the setting on, check the option "Allow access to media".  Next, press on a torrent, then tap on the three dots icon at the right hand top corner of the app then tap on move torrent. You will then be able to see the torrent location and move it to a destination of your preference.