Board Thread:Questions and Answers/@comment-191.92.1.131-20200725015657/@comment-187.3.219.10-20200808193516

Exactly.

No one but Taipei knows. This makes things even more confusing so we cannot know what is true, as everything else in this story. It's the same thing for the confusion of Shaula and Flugel in Arc 6, and the name of the Great Rabbit. For me it creates a sense of realism that stories changed and came to be told in a different way.

In this case those were memories that were different for the same people, so it makes even less sense. In the books one thing is stated, but the same people remember other things. Considering the existence of someone who can literally bend reality (Pandora) and the cases where we see people messing up memories (Echidna, Gluttony), it's possible there's an external cause for these incongruencies.

The complete answer will probably come only a few arcs in the future.