Unfortunately I don't think that this is a new problem.
I did my exams in 2001, and remember similar problems.
I remember one particular problem in the navigation exam. It asked to measure the true track between two airports, and give various answers.
The precise answer wasn't there, but there was possible answers 1 degree either side of the precise answer. I measured again, sharpened my pencil, tried again, and again. It was perfectly clear that the precise answer just wasn't there.
No big deal I thought, as it's just one question.
However then there were a series of questions which used the answer to that question! Eg one was, having worked out the true track, what was the magnetic track, then what heading would you have to fly to achieve this track, based on a given windspeed etc etc. All in all, there were 5 questions dependent on the first answer, which didn't have a correct answer!
So I decided to take each of the two closest answers to the first question and follow them through to see which of the two made sense in the subsequent questions. It turns out that I could start with either of the two potential answers in the first question, and the subsequent five questions all had answers available based on that!
In the end it was a 50/50 guess to which one they wanted. If I got it wrong I'd 6 questions wrong, and little hope of passing.
When I mentioned this to my instructors later, their reply was "Is that question still there?" Apparently it had been there for a number of years already!