Bug - Quiz button not hiding

Quiz 'Submit' button should be hidden after each question.
Now it is hidden at the beginning, but after first question it remains visible.
It allows after clicking it without choosing question to receive max score.

It's possible to patch it after export in file quiz.html adding single line
(...)
$("#checkBtn")
.button({
label: submitBtnText
})
.click(function() {
$(this).hide();
quiz.showFeedBackandTrackResults();
quiz.checked = true;
})
.hide();

Best regards
Gregers

Generally the design principle is to disable inactive buttons rather than hide them, but the point s largely the same, we'll have a look at that,