I just played the rules roundup game and got 36/36 correct, when the game started over(like it usually does after showing you the answers you got wrong) it still had the little picutres like spur and cactus, and listed the question but only one possible answer and provided no place to click to move on. *shrug* Anyway, javaranch.com rules.
Yes, you are right this is a documented bug with the current game. The game is right now under a massive rewrite. When this bug occurs, one way to correct it is to refresh your page and you can continue to play from there.