The maximum height for building is 256 blocks. You cannot use commands or place blocks above this height, but if you try to create a superflat world in a way that would place blocks to high the game will crash.
Linked issues
duplicates 1
Comments
Asteraoth
Thank you for your report!
However, this issue is a Duplicate of MC-68124.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
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