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    Bug 
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    Resolution: Duplicate
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    None
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    Minecraft 18w09a
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    None
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        Unconfirmed
Probably caused by java.lang.ArrayIndexOutOfBoundsException (see log).
World works as normal after hard reset of minecraft.
Also tried generating another new world and it worked fine.
- duplicates
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                    MC-125109 Crash when quickly generating new terrain while world is still loading - Resolved