Description
I'm the one who raised the mc-311235
Some worlds will give an error when upgrading them from the 1.21.11 or below to 26.3 snapshort 10,but other worlds don’t have this problem.If the problem comes from my save file，I hope you can help me to fix my save file.
Steps to Reproduce
Ungrad the world I provide.https://1drv.ms/u/c/8d538310b325f452/IQA5mAUFDmnOSI6fXKfpckBCAfJeroEjvp9hfGZnJtEVF_g?e=Veztcm
Expected result
The world will upgrad successfully,will not gives an error or Includes data from other worlds.
Actual result
Some worlds will give an error when upgrading them.
Environment
Windows11 21H2
Attachments
Comments 2
Hi!
Thank you for your report!
However, this issue is Invalid.
Your game, launcher or server is modified.
If you can reproduce the issue in a vanilla environment, please recreate the issue.
Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
A world which had previously been opened with a modified client might be corrupted. Please try reproducing the issue in a newly generated world.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
If you have problems on large servers like Hypixel, please contact them first as they run modified server software.
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