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MC-301705

Nether resets when upgrading to 25w35a

When upgrading from 1.21.8 to snapshot 25w35a the nether dimension reset. When returning to the previous version without restoring from a backup, the nether dimension is back to what it should be.

Environment

Linux Ubuntu server backend, server versions used: spigot 1.21.8, vanilla snapshot 25w35a, and fabric snapshot 25w35a (loader.0.17.2-launcher.1.1.0)

Comments 2

Hi!
Thank you for your report! 

However, this issue has been temporarily closed as Awaiting Response.

  • Was the affected world created in vanilla build and then updated to the newest snapshot?

  • If not, can you reproduce this issue in vanilla environment?

This ticket will automatically reopen when you reply. Thanks!

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I will test this in a single player and a clean server, but the original was a vanilla server in 1.21.6, then updated to a snapshot (between 1.21.6 and 1.21.8 I can’t remember) and then a spigot version of 1.21.8 and finally the snapshot 25w35a.

I did some more testing and a bit of research, I found some information on upgrading from vanilla to spigot and the nether. I would assume that the same problems can occur when switching the other way.

I believe this is an issue with the spigot/vanilla transition and not a bug in minecraft. Thank you, and apologies for wasting resources on this.
This can be left as closed.

DarkMatter

(Unassigned)

Unconfirmed

(Unassigned)

25w35a

Retrieved