I was running a vanilla minecraft 1.8 server with 1.8.1 clients connected. A few players went through a new nether portal that spawned above an ocean, then the server crashed. However it kept crashing when anyone who had gone through the portal into that area joined. There was no reason for that chunk to be corrupted and no one had ever been in it before. I have attached the crash file.
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Duplicate of MC-63590
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