Board Thread:Questions and Answers/@comment-27343779-20160405083111/@comment-1739368-20160405124402

Nabukun wrote: What about the contradictions within the tankobon chapters themselves?

In Part 4 Jotaro had no idea what the Arrows were and in Part 5 it's retconned as him chasing after the Arrows during the 9's.

That was an issue present in the initial release though, the tanks don't usually change story plot, they only fix details.