Discrepancy
/dɪsˈkɹɛpənsi/
noun
An inconsistency between facts or sentiments.
“They found a discrepancy between the first set of test results and the second, and they're still trying to figure out why.”
The state or quality of being discrepant.
Synonyms: anomalous, discordance, anomaly, conflict, contrariety, deviation, difference, disagreement