Nor does Libby's surname begin with G - but Helen Glover's does - although her first name does not start with L and the whole is not an anagram of logic gates either!
It wasn't the setter, it was the boysinblue on the forum who had the quiz and queried it with the setter who confirmed the error. I don't know if the quiz is advertised on here or the other site but I agree the setter ought to have entered the amendment on all sites.