After successful verification using BiometricAuth, the system exits

[kangboy 0]

I am using version 12.1 of Delphi, android 10，and the code is as follows:

procedure TForm1.BiometricAuth1AuthenticateFail(Sender: TObject;
  const FailReason: TBiometricFailReason; const ResultMessage: string);
begin
   Label1.Text:='fail'
end;

procedure TForm1.BiometricAuth1AuthenticateSuccess(Sender: TObject);
begin
   Label1.Text:='OK'
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
   BiometricAuth1.Authenticate;
end;

but，After using the correct fingerprint, the program will not return to the successful verification process and will exit directly. Debugging with breakpoints cannot be traced because the program exits directly at this point，please help，thanks。