Backup doesn't work but shows success

[TechMorgan]

Device info

Manufacturer: Oneplus
Android version: 13
Custom ROM/rooted? No
Model: Nord CE 3 Lite

System info

Available disk space: 114GB
Operating system: macOS

---

Describe the issue below.

The backup doesn't work properly. It shows this error:

Open Android Backup will install a companion app on your device, which will allow for contacts and other data to be backed up and restored.
The companion app is open-source, and you can see what it's doing under the hood on GitHub.
Companion app already downloaded.
Attempting to uninstall companion app.
Installing companion app.
IMPORTANT: If this appears to be stuck, check your device for any Play Protect warnings and press 'More details' -> 'Install anyway' to continue. The app is falsely flagged by Google.
Performing Streamed Install
Success
Granting required permissions to companion app.

Exception occurred while executing 'grant':
java.lang.SecurityException: grantRuntimePermission: Neither user 2000 nor current process has android.permission.GRANT_RUNTIME_PERMISSIONS.
at android.app.ContextImpl.enforce(ContextImpl.java:2260)
at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:2288)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermissionInternal(PermissionManagerServiceImpl.java:1364)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermission(PermissionManagerServiceImpl.java:1346)
at com.android.server.pm.permission.PermissionManagerService.grantRuntimePermission(PermissionManagerService.java:551)
at android.permission.PermissionManager.grantRuntimePermission(PermissionManager.java:597)
at com.android.server.pm.PackageManagerShellCommand.runGrantRevokePermission(PackageManagerShellCommand.java:2591)
at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:302)
at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
at android.os.ShellCommand.exec(ShellCommand.java:38)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onShellCommand(PackageManagerService.java:6381)
at android.os.Binder.shellCommand(Binder.java:1073)
at android.os.Binder.onTransact(Binder.java:901)
at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:4313)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onTransact(PackageManagerService.java:6365)
at android.os.Binder.execTransactInternal(Binder.java:1331)
at android.os.Binder.execTransact(Binder.java:1268)
Couldn't assign permission android.permission.READ_CONTACTS to the companion app - this is not a fatal error, and you will just have to allow this permission in the app.

Exception occurred while executing 'grant':
java.lang.SecurityException: grantRuntimePermission: Neither user 2000 nor current process has android.permission.GRANT_RUNTIME_PERMISSIONS.
at android.app.ContextImpl.enforce(ContextImpl.java:2260)
at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:2288)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermissionInternal(PermissionManagerServiceImpl.java:1364)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermission(PermissionManagerServiceImpl.java:1346)
at com.android.server.pm.permission.PermissionManagerService.grantRuntimePermission(PermissionManagerService.java:551)
at android.permission.PermissionManager.grantRuntimePermission(PermissionManager.java:597)
at com.android.server.pm.PackageManagerShellCommand.runGrantRevokePermission(PackageManagerShellCommand.java:2591)
at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:302)
at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
at android.os.ShellCommand.exec(ShellCommand.java:38)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onShellCommand(PackageManagerService.java:6381)
at android.os.Binder.shellCommand(Binder.java:1073)
at android.os.Binder.onTransact(Binder.java:901)
at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:4313)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onTransact(PackageManagerService.java:6365)
at android.os.Binder.execTransactInternal(Binder.java:1331)
at android.os.Binder.execTransact(Binder.java:1268)
Couldn't assign permission android.permission.WRITE_CONTACTS to the companion app - this is not a fatal error, and you will just have to allow this permission in the app.

Exception occurred while executing 'grant':
java.lang.SecurityException: grantRuntimePermission: Neither user 2000 nor current process has android.permission.GRANT_RUNTIME_PERMISSIONS.
at android.app.ContextImpl.enforce(ContextImpl.java:2260)
at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:2288)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermissionInternal(PermissionManagerServiceImpl.java:1364)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermission(PermissionManagerServiceImpl.java:1346)
at com.android.server.pm.permission.PermissionManagerService.grantRuntimePermission(PermissionManagerService.java:551)
at android.permission.PermissionManager.grantRuntimePermission(PermissionManager.java:597)
at com.android.server.pm.PackageManagerShellCommand.runGrantRevokePermission(PackageManagerShellCommand.java:2591)
at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:302)
at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
at android.os.ShellCommand.exec(ShellCommand.java:38)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onShellCommand(PackageManagerService.java:6381)
at android.os.Binder.shellCommand(Binder.java:1073)
at android.os.Binder.onTransact(Binder.java:901)
at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:4313)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onTransact(PackageManagerService.java:6365)
at android.os.Binder.execTransactInternal(Binder.java:1331)
at android.os.Binder.execTransact(Binder.java:1268)
Couldn't assign permission android.permission.READ_EXTERNAL_STORAGE to the companion app - this is not a fatal error, and you will just have to allow this permission in the app.

Exception occurred while executing 'grant':
java.lang.SecurityException: grantRuntimePermission: Neither user 2000 nor current process has android.permission.GRANT_RUNTIME_PERMISSIONS.
at android.app.ContextImpl.enforce(ContextImpl.java:2260)
at android.app.ContextImpl.enforceCallingOrSelfPermission(ContextImpl.java:2288)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermissionInternal(PermissionManagerServiceImpl.java:1364)
at com.android.server.pm.permission.PermissionManagerServiceImpl.grantRuntimePermission(PermissionManagerServiceImpl.java:1346)
at com.android.server.pm.permission.PermissionManagerService.grantRuntimePermission(PermissionManagerService.java:551)
at android.permission.PermissionManager.grantRuntimePermission(PermissionManager.java:597)
at com.android.server.pm.PackageManagerShellCommand.runGrantRevokePermission(PackageManagerShellCommand.java:2591)
at com.android.server.pm.PackageManagerShellCommand.onCommand(PackageManagerShellCommand.java:302)
at com.android.modules.utils.BasicShellCommandHandler.exec(BasicShellCommandHandler.java:97)
at android.os.ShellCommand.exec(ShellCommand.java:38)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onShellCommand(PackageManagerService.java:6381)
at android.os.Binder.shellCommand(Binder.java:1073)
at android.os.Binder.onTransact(Binder.java:901)
at android.content.pm.IPackageManager$Stub.onTransact(IPackageManager.java:4313)
at com.android.server.pm.PackageManagerService$IPackageManagerImpl.onTransact(PackageManagerService.java:6365)
at android.os.Binder.execTransactInternal(Binder.java:1331)
at android.os.Binder.execTransact(Binder.java:1268)
Couldn't assign permission android.permission.READ_SMS to the companion app - this is not a fatal error, and you will just have to allow this permission in the app.
Cleaning up after backup/restore...
Using the 'Fast' data erase mode.
Cleanup complete.

Install zenity to use a graphical directory chooser

Estimating backup size, please wait...
stat: illegal option -- c
usage: stat [-FLnq] [-f format | -l | -r | -s | -x] [-t timefmt] [file ...]
stat: illegal option -- c
usage: stat [-FLnq] [-f format | -l | -r | -s | -x] [-t timefmt] [file ...]
Enough space in the current directory. Estimated backup size: 0 MB
Attempting to uninstall companion app.

All required data has been copied from your device and it can now be unplugged.