Summary:
This seed can causing feature to repeat mineshaft.
Step to reproduce:
Create the new world and using this seeds in the table:
||List of Seeds||Repetition direction||
|-1171867832|Vertical|
|1000686894|Vertical|
Command: /locate mineshaft
Using tp command with mineshaft coordinates list
Break the block downwards to mineshaft
Observed Results:
This mineshaft has repeat vertically.
Expected Results:
This mineshaft should generates with random coordinates.
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Thank you for your report!
We're actually already tracking this issue at MCPE-95011, so I will resolve and link this ticket as a duplicate.
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The image below is proof that the mineshaft has vertical repetition:
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