Put the summary of the bug you're having here
What I expected to happen was...:
Generate the terrain usually
What actually happened was...:
A never ending "Loading world" screen and a crash report being created.
Steps to Reproduce:
1. Click on "Create New World"
2. Select the world type "Superflat"
3. Customize using the "Water World" preset
4. Atempt to create this world
Environment
Windows 10; Java 8.0.1310.11
Thank you for your report!
However, this issue has been temporarily closed as a Awaiting Response.
We do not have enough information to find the cause of this issue.
In case of a crash please add the file
[.minecraft/launcher_log.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]to this ticket.If there is no crash log, please follow that guide.
Once attached, the report will be reopened automatically.
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