I created a BDSM, i can stop the software, and restart it, and it will restore the player data, but when the computer restarts, previously stopping correctly, and running the software, the player data will be lost.

The blocks placed and the Chest Storage are still there, but every player loses the experience, inventory and equipment they had at the moment of logging off and closure of the server.

UPDATE: i locked myself on a 1x1x2 space, with a torch at my feet, so no logical way for me to die. But this time i didn't have to restart the computer, i logged off, waited some time, logged back in and i was on spawnpoint, not even on my bed, the lock chamber was intact, and no one logged on the server while i was offline.