Disappearing Builds

Please do not mark issues as private, unless your bug report is a security issue containing information that may compromise your server/client.

Cannot reproduce, neither single nor multiplayer.

Duplicate of MC-409?

I can confirm that I have recently experienced this with my own SMP server. I lost many hours of work because of this bug. I cannot reproduce it, but it took restarting the entire computer the server was on, to fix.

To clarify, new builds do not "disappear" with this bug, but revert to a former state once all users log off, or once chunks are unloaded. The only things that do not revert, of course, are those independent of chunks: Player inventories, ender chests, etc. But all tile entities within a chunk do revert, including their associated data values.

In my instances, nearly every chunk near the world spawn was reverted to its state from over 48 hours earlier.

Did you find anything unusual in the server.log ?
Remember, the server has to be shut down by stop, otherwise you'll lose data and the world may be corrupt.

I did not check the server.log; would relevant info still be there, or is it wiped with each server startup?

And yes, I always use both the save-all and stop commands to shut down my server.

The server logfile is never deleted, always appended.

Duplicate of MC-4001.