bro it's quite possible because that is beta testing version not stable so may some built apps or system can malfunction..... wait for official version otherwise unregistered beta and bring back your last official firmware via Odin or service center
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.
