Minecraft Forums

Since the 27a thread is no longer accessable, I'm posting here instead.

Issues with 27a.

1. Opening a world to LAN will give you a row of bad chunks.

Repeat by:
A: Fly in the air.
B: Wait for all chunks to load.
C: Open world to LAN
D: Move in a straight line

4 tests, 4 rows of unloaded chunks. Always right at the edge of what had been loaded in single player before switching to LAN.

2. LAN visitors join where you are. Not at spawn. Or even where you wanted them to. If the LAN visitor disconnects, and you return to spawn, or wherever you wanted them, on reconnect they are not moved to you, but are left where they logged out.

Work-around: Delete the player file.

3. You can no longer use a negative adjustment for "/time add" to rewind the daylight.
4. You can no longer use a negative time set -- "/time set -1000" to give people one game hour to run and find a place to call "home" before the battle begins at 6:00 am gametime.

Work-around: Learn other timestamps. Annoying. Use a pair of /time sets, one for 23000, and then another for 0 to start the game.

5. Open to LAN wants to keep the host up, tying up the graphics card. Even if the window is hidden, in pause/escape mode, or otherwise not doing anything (waiting for friends to arrive), the GPU is busy and less available for other programs. I cannot open to LAN and go headless. If I'm away from the computer, my LAN friends cannot sleep.

5a: Open to LAN thinks it knows the local LAN address. In particular, it wants to use 192.168.x.y (Local wire) in preference to 5.23.x.y (Hamachi).

6. Testing tree growth in the Nether gave inconsistent results. Oak trees grow nicely in a 5x5 space; small jungle trees also. White/Birch and Redwood/Spruce were not consistent; in some cases they needed a 7x7 space to grow. (Tested by creative mode bonemealing for a long while.)

7. Redstone loops still get into invalid states.
Loop setup:
This is basically an RS-Nor latch modified (with repeaters) to permit a clock signal.
Repeater (4)
Input signal (set) (redstone wire branch to button)
Repeater (4)
Inverter (torch)
Input signal (reset) (redstone wire branch to switch)
Repeater (4)
Inverter (torch)

Loop timing: 14 redstone-ticks
If the switch is "on/down", then the button cannot put a clock signal into the loop.
If the switch is "off/up", then the button can put a 9 redstone-tick pulse into the circuit, and it will then act as a clock.

In 125 single player, it works perfectly.
In 125 multiplayer AND 12w27a it will lose its timing. Approximately 15 tests; 14 go to lockup (the button side of the rs-nor being on all the time), and one to inaccurate stable timing (on pulse is less than 9 redstone ticks; off pulse is longer than 5.)

EDIT: Demo video (I hope):

8. Creative mode inventory: "Redstone" has trap doors and fence gates, as well as normal doors. "Decoration blocks" has fences (including panes and iron bars), but does not have fence gates. I don't think of "Redstone" when I think of doors or fence gates; I think of fences and gates together.

Implication: A block can/should be on multiple places in the creative inventory screens.

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EDIT:

9. Sheep will not follow you inside a fence pen if you are holding wheat. They appear to consider only cartesian distance (X/Z) and will not path to you, but will stay outside the fence.

I did. One bug per edit. Took about an hour. All entered.

EDIT: I won't pretend to know the proper wiki formatting, but they are all entered and signed.