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MC-305739

Incorrect Formatting On Upgraded Books

After the book UI refactoring in 1.21.6, the upgrade of existing books was not handled properly, which leads to the book text being shadowed and having the wrong colour. This is especially curious because shadowed text normally is impossible inside books and quills. From my findings, this is mainly caused by the reset not being handled properly.

Steps to reproduce:

  1. Go into a version of Minecraft before 1.21.6 - in my demonstration video is used 1.21.5

  2. Format a book using the paragraph symbol - importantly use the โ€œยงrโ€ to reset the formatting

  3. Sign the book

  4. Open the book in a newer version - here tested with 1.21.11

  5. Observe that the formatting is completely broken

I attached a few examples and a video showing the problem. before 1.21.6 after upgrade

This would be an easy fix because it doesn't happen anymore - the books just need to be properly updated to the new format used after 1.21.5.

Fist image shows the 1.21.5 book the second shows it in 1.21.11.

2026-01-15_20.50.42-20260115-195043.png
2026-01-15_20.51.24-20260115-195124.png

here are also some more examples

2026-01-15_20.51.38-20260115-195139.png
2026-01-15_20.51.44-20260115-195144.png

But also some books where uneffected.

2026-01-15_20.50.48-20260115-195048.png
2026-01-15_20.50.57-20260115-195057.png

Attachments

Comments 3

Thank you for your report!

It does not seem like inputting the "ยง" symbol is possible. Could you please explain how you were able to do that? Or alternatively, could you please attach a world showcasing the issue?

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As mentioned above, this is an upgrade issue, so you need to create the book in a version before 1.21.6 because first, the issue is caused by upgrading to 1.21.6 or later, and second, after 1.21.6 Mojang removed the ability to format books.

In any chase there is now a attached world that showcases the issue. When upgrading, I noticed that also unsigned books that were created in 1.21.5 and then put in a lectern were affected when viewed in a lectern. After taking them out of the lectern and opening them, the formatting returned to normal, but only if they weren't signed before.

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This is also especially sad because normally Mojang cares about long-term worlds so that nothing breaks, for example with terrain blending. But here something you create and looks great in a version now looks completely different and broken the next version.

J4PC

(Unassigned)

Unconfirmed

(Unassigned)

1.21.11, 26.1 Snapshot 3

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