Adjust the value of [Accuracy Level] for [Automatic Profile Selection].
<When different documents are detected as the same document>
Set a higher level of [Accuracy Level].
Differences between documents will be detected more finely, and documents are likely to be detected as different.
<When the same document is detected as a different document>
Set a lower level of [Accuracy Level].
Slight differences in documents will be considered to be errors, and documents with the similar layout are likely to be detected as the same.