Myself and other players have been noticing some bugginess lately in Minecraft. The most noticeable one has been having blocks reappear while mining. I’ve been trying to figure out if it was because our map’s gotten so large, the number of players online, a hardware resource on my (admittedly underpowered) server, or (most likely) a combination of all of the above.
Turns out it’s actually a known issue and one Notch is working on:
Today and tomorrow will be two days of solid work. I’m currently working on server-side health and some performance tweaks. It looks like I might want to rewrite (or at the very least refactor) parts of the lighting engine to get better control over it. For server-side health, the current issue is that the client is sending the wrong entity id for targets. I’m also looking into fixing a bunch of lag issues, specifically the returning blocks after mining them bug.
Of course, the difficult thing to do now is practice patience. It is alpha code after all, something I often forget because the single player version of the game is so solid.