I tested it generating 4 new worlds, going to the End dimension through tp and end portal, and every time the Ender Dragon and the Exit Portal were not generated. The boss battle with the Ender Dragon didn't begin either.
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Asteraoth
FACS01
Thank you for your report!
However, this issue is a Duplicate of MC-137467.
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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