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Incubator Q&A

Welcome to the staging ground for new communities! Each proposal has a description in the "Descriptions" category and a body of questions and answers in "Incubator Q&A". You can ask questions (and get answers, we hope!) right away, and start new proposals.

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Incubator Q&A How to fix corrupted world data after increasing the world height with a datapack?

I increased the vertical height of my world yet again by lowering the min_y and increasing the height values in the existing datapack I've already used for 2 years, whose sole purpose is to provide...

1 answer  ·  posted 2mo ago by Andreas witnessed the end of the world today‭  ·  last activity 2mo ago by Andreas witnessed the end of the world today‭

#2: Post edited by user avatar Monica Cellio‭ · 2024-09-13T15:43:49Z (2 months ago)
proposal tag
#1: Initial revision by user avatar Andreas witnessed the end of the world today‭ · 2024-09-13T04:15:22Z (2 months ago)
How to fix corrupted world data after increasing the world height with a datapack?
I increased the vertical height of my world yet again by lowering the `min_y` and increasing the `height` values in the existing datapack I've already used for 2 years, whose sole purpose is to provide me more vertical space for building. Unfortunately, after doing so, my world started exhibiting some issues. It renders just fine in vanilla, but some of the mods I use were struggling with the chunk rendering. I assumed it was a bug in the mods, so I kept on building. Only now I realized that maps are broken too, meaning my vanilla world data is likely corrupted. Unfortunately, I have now spent quite some time expanding the world further, so reverting to the backup is not really an option. 

![Screenshot from Minecraft showing how maps are rendering incorrectly](https://proposals.codidact.com/uploads/88uo0q6twpvajeecf8fh93brjpck)

What has gone wrong here, and how do I fix it?