why redirect don't work into try catch?

After form submit this code executed:

#[Requires(methods: 'POST', sameOrigin: true)]
    private function processSignUpForm(Form $form, \stdClass $data): void
    {
        try {
            $data->roles = 'client';
            $this->userfacade->add($data);
            $this->flashMessage('message', 'success');
            $this->redirect(':in'); // it NOT work here
        } catch (\Throwable $th) {
            $form->addError($th->getMessage());
        }
		$this->redirect(':in'); // it work here, but error only in flashMessage and user get out from register page
    }

Into $this->userfacade->add($data);:

#[Requires(methods: 'POST', sameOrigin: true)]
    public function add($data): void // object
    {
        $this->db->beginTransaction();
        try {
            $new_user = $t->insert($data);
            $this->db->commit();
        } catch (UniqueConstraintViolationException $e) {
            $this->db->rollBack();
            throw new \Exception('UniqueConstraintViolationException');
        } catch (Nette\Database\DriverException $e) {
            $this->db->rollBack();
            throw new \Exception('Nette\Database\DriverException');
        }
    }

Into try-catch redirect not work. After catch redirect work but user get out from register page and errors can only be passed through flashMessage.

Please why and how to make it work inside try catch block…