That is a prerequisite for you to know that it's an Android guideline that Banking apps don't work on beta. although if you haven't clean flashed, then everything should work.
We would like to inform you that in order to further analyze your concern kindly send system log file using Samsung member application i.e. Samsung member BETA app > BETA feedback > Send feedback > Error report > Collect log files > attach. Be sure to hit ♡ when you find an answer that works for you.
