I see this, but without any data as well. The platform peridocally saves things itself, but nothing went through with the post. Not sure what's wrong here. Can you type in a question, even a sample text, and save the draft?
I haven't had any reports of this and I do put in questions every few days.,
No, this is a simple form, not an interactive designer (yet).
We prefer to select answers so only one is correct, but we do support multiple correct answers. Be sure your question lets the user know to choose 2 (or 3, etc). We do not support either or answers, so the correct answer cannot be 2 or 3, it must be 2 and 3, or just 2 or just 3.