[MC-36429] Weird grass border between Ice Plains and Ice Mountains

Between the Ice Plains and Ice Mountains biome no snow is generated inside an 8 block border.

I created a new Creative world in 13w43a and noticed a green area right near spawn. It stretches over the edge of the Ice Mountains for quite a bit.
The seed is 153445816365099118.

Related issues

duplicates

MC-84800 Reloading a world during terrain generation causes some parts of the world to be generated in stripped parts (snow, trees, etc.)

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migrated 2013-10-21T21:02:55Z

[media][media]

galaxy_2alex 2013-10-21T21:05:37Z

Can not confirm
However, it might be MC-15820

kumasasa 2013-10-21T21:08:05Z

Cannot confirm, see screenshots.

Please recreate the world with a name different from "New world", MC-315 may be the cause.

On the other hand, your Java is outdated.

migrated 2013-10-21T21:27:02Z

It is MC-15820. Thanks!