Why doesn't the Question system work in DLE?

Question

DLE

I have this thing happening when I add a question-answer system, I write "[question] {question} [/question]" in registration.tpl and I get:

Answer 1

In addition to the question, you also need to display the input field, if I understood you correctly. See how it's done in the default template:

[question]
      <li class="form-group">
        <label for="question_answer">{question}</label>
        <input placeholder="Введите ответ" type="text" name="question_answer" id="question_answer" class="wide" required>
      </li>
    [/question]