Joel Francis

I'm seeing a similar thing on the Realms server I play on. Client is 1.8.1/vanilla, running on Java 1.8.0_25 64bit.

I don't own the server, but it seems all players on the server (there are more than 10 players, though it's rare for more than two or three to be logged in simultaneously) suffer much the same. One or two players have it consistently worse, but I suspect that may be their own connection issue (although the server issue is no doubt making things worse for them).

Something worthy of note, I think, is that the lag is most present when only one player is on the server.

With one player logged in, there is extreme block lag (blocks dug may take up to twenty seconds to drop their respective resources, placed blocks don't fully register for the same amount of time as evidenced by the lag between placement and hearing the 'placed' sound.

Mobs spawned from blocks (most notably silverfish) may take a very long amount of time to show on the client, causing lag sufficient for even a single one of these mobs to kill the player outright regardless of how the player attempts to fight back. Running away sometimes permits survival, but only infrequently. Even having run a considerable distance away, the damage from the mob may slowly show up over the next two full minutes, either until the server belatedly decides the player has escaped the danger, or until the player is dead.

Players killed in such a manner typically have their items strewn all over a large area, presumably from the server catching up to their pre-death movements. Mobs may not appear to move at all for a very long time, then suddenly stutter gradually towards a new location.

It is completely unplayable.

However, as soon as a second or third player joins, the lag almost immediately starts to vanish. It may take a few full minutes to sync everything properly, but shortly enough it seems to be perfectly fine. After the additional players log out, the server seems to remain fine until the last player logs out. Following a period of approximately an hour and a half upwards of no players being present on the server, the first player to log in will frequently have this issue.

It is not always present, but frequently enough to become a real nuisance.

http://www.reddit.com/r/minecraftsuggestions is one I've seen mentioned by the mods here before.

As to this – from my memory of spiders' hostility mechanics, if they're in dark enough shade, they won't be neutral. If they decide to target you, they will remain hostile even if they step into sunlight.

Spiders are only changed from hostile to neutral when they are standing on a block in sunlight, and they haven't already targeted the player.

I stopped playing Minecraft for a while shortly after full release (1.0). It was not a bug that existed around then. It cropped up between then and now – I'm not saying it's easy to solve, but it's definitely a bit of a problem.

There was no client crash report; attached the server crash report that it gave.

Looks like it's similar, at the very least; a whole host of others listed as duplicates for that one cover most of this one's symptoms, too... but not one seems to cover the 'overlapping models' thing I've been seeing with chests and enchanting tables.

I've had no issues with water updating, though sometimes the game will not register entities' behaviour correctly.

If you look closely, you can see the block outline highlighted even though no block exists there – the block's physics are intact (i.e., it can be walked on and interacted with), however the block's appearance does not show until another block is placed nearby.

I can't say I've seen that particular one, but yes, it does cause some odd behaviour. I've noticed you can occasionally open fence gates... and they'll still appear closed until you toggle the closed and open again.

Confirmed. Though, I would think this flip is horizontal.

Still in 14w30c

I've noticed that it seems to happen more frequently when partial blocks are around – half-slabs, stairs, fences and so forth. A single half slab placed in an enclosure with animals or villagers will cause problems frequently, up to and including suffocation if the animals stay "underground" too long. The suffocating is more prevalent with baby animals and villagers.