When I clicked on "Singleplayer" and made a new world the game crashed.
steps to reproduce:
1. Click "Singleplayer"
2. Click "create new world"
3. Click "more world options..."
4. Click "world type" until you get "superflat"
5. Click "customize" then "presets"
6. and finally click the "desert" preset
Then the game crashes while it says "building terrain"
Thank you for your time.
This ticket is invalid as it relates to a modded or 3rd party client/server.
Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the plugin creator.
This site is for addressing issues related to the base unmodded MineCraft.