In the faithfulness metric, the number of claims the judge splits from the same answer varies (for example, one answer was split into 5, 10 and 11 claims across three runs), causing the denominator to change and thus the score to fluctuate; precision and recall consist of yes/no judgments, with 5 of 148 chunk judgments flipping across the three runs and 3 of 22 reference-statement judgments flipping; since 14 of the 18 reference answers are a single sentence, recall on those questions is either 0 or 1.