Migrating from 1.21.11 to 26.1.1 unsuccessful

[Dev-Boaz]

Stack trace

https://paste.infinity-node.net/etuwasebec

crash-2026-04-05_09.22.55-server.txt

Plugin and Datapack List

Actions to reproduce (if known)

No response

Paper version

1.21.11 > 26.1.1

Other

Failed to migrate world storage for world_nether

[Doc94]

Hi, can you share the world before the migration?

looks like the previous world has a duplicated file and the migration stop for that...

[Dev-Boaz]

This is the world, but I think it crashed because the world is not generated.

[Doc94]

This is the world, but I think it crashed because the world is not generated.

i just try that world (with not other because you dont share the other world) and cannot replicate...

[Dev-Boaz]

Want me to send the hole back up?

[Dev-Boaz]

He dont want to upload, can you add me on dc? Thebigfriendlygiant

[Dev-Boaz]

https://transfer.zip/quick#PwgT9VFXWXM2_SAfofubJyHQrNzAiK78tyvIDbBuuZQ,13dd5c52,R

i didnt want to close it, but here are the worlds!

[Dev-Boaz]

Any updates?