I'm sure this happened not that long ago but after my second correction in as many days on two different quizzes it seems the quiz system has stopped recognising single letters again for yes/no answers. Of course the system is meant to recognise both options automatically but hasn't since yesterday in my case. I've passed it on to the editors but in case anyone else has had it it's not just you.

I checked the quiz yesterday and the problem was that it was marked as an FITB question, not a True/False question. I fixed this and it should fix the problem.

Thanks Cris, it happened in two different quizzes in as many days, if you need the title of the second one it's in my inbox to check.

If it isn't in one of my categories, let the editor for that category know. It's probably the same issue.