Just one last quick update for the day regarding the last Minecraft bug-fix patch, 1.6.4.
While the patch does seem to have taken care of a few bugs affecting server performance, one major thing it seems to have introduced is issues with chunk loading. I unfortunately am not at my own PC where I could take a video of the phenomenon, but let me describe what happens on my SMP server.
When logging on, for some players (but not all) no chunks will load. Entities such as animals, mobs, and players will show up but just jitter in place as the client and server fight over wether or not the ground exists. If you’re lucky and you are able to teleport to a distant player, the chunk loading process is triggered, but it takes place from farthest to nearest chunk. You are still stuck jittering while you watch the chunks load, until the chunk below you is finally loaded. Then everything seems to be fine. Logging out and back in seems to cause this scenario to repeat most of the time.
Until Notch is able to take a look into this, teleporting to another place beyond your current render distance seems to be the only workaround I have found. Not every player is afflicted with this problem, thankfully. Just a few hundred blocks from where a friend and I were stuck, another player was able to log in and work on his building normally.
Here’s hoping all this is sorted out by tomorrow. Happy Crafting!