Issue on password binding -> is always reset to "" on page navigation

here the log:

'App8.exe' (CoreCLR: clrhost): Loaded 'C:\Program Files\dotnet\shared\Microsoft.NETCore.App\3.1.11\System.Diagnostics.FileVersionInfo.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled. PasswordChanged SetIsUpdating >True< SetPassword >t< BackupPassword >t< OnPasswordPropertyChanged GetIsUpdating >True< SetIsUpdating >False<

PasswordChanged SetIsUpdating >True< SetPassword >te< BackupPassword >te< OnPasswordPropertyChanged GetIsUpdating >True< SetIsUpdating >False<

PasswordChanged SetIsUpdating >True< SetPassword >tes< BackupPassword >tes< OnPasswordPropertyChanged GetIsUpdating >True< SetIsUpdating >False<

PasswordChanged SetIsUpdating >True< SetPassword >test< BackupPassword >test< OnPasswordPropertyChanged GetIsUpdating >True< SetIsUpdating >False< -------------------------------------- here I navigate back to main page PasswordChanged SetIsUpdating >True< SetPassword >< BackupPassword >< OnPasswordPropertyChanged GetIsUpdating >True< SetIsUpdating >False< The program '[0xA988] App8.exe' has exited with code 0 (0x0).