Yoshi and the Mysterious Book Has a Game-Breaking Bug

via Nintendo

Published May 30, 2026, 6:08 PM EDT

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Nintendo has issued a warning, alerting players to a game-breaking bug present in Yoshi and the Mysterious Book. The bug remains unfixed at the time of writing, so players of Yoshi and the Mysterious Book should take care to avoid the sequence of steps that triggers the problem.

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Nintendo Warns of Game-Breaking Bug in Yoshi and the Mysterious Book

Nintendo of Japan sent a message out to gamers that it had received numerous messages from players saying that they had run into a significant bug in the game, and Nintendo has confirmed the findings. Nintendo states that the bug starts in chapter four. If players unlock the Index feature and skip Mr. E’s explanation, the bug can then transpire any time players start Bewilder Bird research, don’t make any discoveries, and then return to the Index. After this point, players will be unable to proceed, and won’t be able to complete the game. Nintendo is currently working on a patch to fix the issue. Once that’s done, the company will also advise players currently impacted by the bug on how to proceed.