Hello @Arquell ,
If you are still experiencing the issue after update to ZUJ1, Please update Samsung members app to latest version from galaxy store and send us an error report immediately after experiencing the issue from the Samsung member’s app -> Beta Feedback -> Error Reports to help us debug the issue. We apologize for the inconvenience and appreciate your contribution to the beta program.
Battery drain tends to be little higher in beta program as focus initially is to keep things stable. As we march closer to official software, battery life tends to get better.
One UI Beta Team