In device care/battery/app power management/apps that won't be put to sleep, all apps are not listed. I use blue mail for email and I don't what it to sleep, but the app is not listed...
Please try clearing the system cache and rebooting your device.
If issue persists, please send us an error report with screenshots from One UI Beta App (Beta Feedback -> Send feedback-> Error Reports -> "Select Category" -> Input frequency and Description" -> Send (Top Right Icon). We appreciate your help for supporting beta program.
