If you're seeking a specific answer, it's really hard to determine without more specific information.
From your review of PT71 what types of errors did you commit that you did not for the previous PTs listed - any trends or patterns? This would be a start to help figure out what happened.
Very well could be an outlier. Just chill. If you're taking in a few days, stop scoring. Your confidence should be sky high going in, not down in the dumps. Best of luck to you.
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From your review of PT71 what types of errors did you commit that you did not for the previous PTs listed - any trends or patterns? This would be a start to help figure out what happened.