Thread:9koopa/@comment-27219153-20170409055401/@comment-26061849-20170409063318

Ah that. We figured out the main reason. I have not personally tested it, but this is what I have found. Whenever we get corrupted data on my server, it's never anyone that was in creative mode or was opped or whatever. Turns out, that was because it mainly occurs when a player dies, then they disconnect from the server (Whether from pushing "Title Screen" or the server closing before then, even afk kick). This causes their data to corrupt.

Lag is a big factor in this. Say you have not the best computer, go into a place with lots of enemies and start lagging. They kill you, but your screen is frozen so you can't tell. You exit minecraft and Oops! corrupted data.

Ever since I told the people on my server about this, corrupted data has gone down. It still happens from afk kick or the server closing, but less often. Of course, there are still other reasons, such as corrupted chunks being created from world editing something in with the wrong ID. But I have found this to be a main factor in my case.