Not all questions are scoring

I have run into a stumper today. I published a course with 10 questions. Originally, each question was worth 1 point, so my score was 10 (not passing). I went back and changed each one to be worth 10 points. But, when I take the test and check my results, my score is always 90, even though I know I answered all the questions right.So, it seems as though one question got "lost" in the transition. Any suggestion for figuring out which question it is? Or shoud I just get rid of them all and start over?

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