Babymoo, I was just searching the forum to point out exactly the same problem on the same quiz. (Terry or Music Editor- quiz ID is 85429.)
There seemed to be no obvious reason for the errors and both FITB and MC-types were affected.
The key to everything is patience. You get the chicken by hatching the egg, not smashing it.
Ex-Editor, Hobbies and Sports, and Forum Moderator