Birch leaves can turn into bottom half of doors

Similar to my issue MC-87641?

Please redo the screenshots with debug screen enabled while pointing to a "door".

Please force a crash by pressing F3 + C for 10 seconds while in-game and attach the crash report ([minecraft/crash-reports/crash-<DATE>-client.txt|http://hopper.minecraft.net/help/finding-minecraft-data-folder]) to this ticket.

Does this maybe relate to MC-56858? Have you switched off a resource pack before this happened?

• Can you reproduce that by opening the original 1.8 world in 15w36d ? (Without having it opened in any previous 1.9 snapshot ?)

• Does the problem persist when you reload by F3+A ?

• Does the problem persist when quitting the game , restarting and reloading the world ?

Might be MC-88191

Confirmed for

• 15w36d

Seems to affect only certain chunks

Affected blocks are:

• Accacia leaves (displaying other blocks)

• Oak stairs facing west

• Fences (not loading)

• Probably every other blocks

Blocks being loaded instead:

• Doors

• Wooden Pressure plates

• Eventually every other block

What I experienced was that sometimes when loading the world but else when going maybe 100 blocks away (to another village in the North) and then coming back again causes it as well. After placing white wool above affected leaves, the wool is now loaded sometimes as other blocks as well or does not load at all, however the originally affected block below it seem now unaffected. In the other village two fence pieces are affected, which did not load at all. However the affected blocks are always in one chunk, same blocks next to them but in another chunk are unaffected. This issue is clientside but it really loads the blocks as wrong blocks. Middle clicking on them gives you the block being loaded. Placing another block in that chunk (?) but not directly attached to the not loading blocks causes them to load this block.

I experience also MC-10976 and I got now twice an error when starting the world:

[12:26:31] [Server thread/INFO]: Starting integrated minecraft server version 15w36d
[12:26:31] [Server thread/INFO]: Generating keypair
java.lang.NullPointerException
	at ux.a(SourceFile:401)
	at uz.a(SourceFile:213)
	at ayk.a(SourceFile:50)
	at ll.b(SourceFile:153)
	at bvd.a(SourceFile:98)
	at bvd.j(SourceFile:130)
	at net.minecraft.server.MinecraftServer.run(SourceFile:427)
	at java.lang.Thread.run(Thread.java:745)
[12:26:32] [Server thread/INFO]: Preparing start region for level 0
[12:26:33] [Server thread/INFO]: Preparing spawn area: 34%
[12:26:34] [Server thread/INFO]: Changing view distance to 12, from 10
[12:26:34] [Server thread/INFO]: Marcono1234[local:E:d026f45e] logged in with entity id 11 at (-1953.217685604307, 80.18696785535857, -1004.2604443552581)
[12:26:34] [Server thread/INFO]: Marcono1234 joined the game

What is know

• Client side bug where the client loads the wrong blocks (it is not caused by resource packs)

• Affects only certain chunks and only one block type

• Blocks either do not load or load as other blocks

• Right-clicking the blocks loads them (similar to ghost blocks)

• The loaded blocks seems to be the last changed blocks (opening a door next to not loading blocks causes them to load as door)

How to reproduce

1. Create a new world with these settings:

   Type: Large Biomes
   Seed: 1813652467898983630

2. /tp -1950 79 -998 and wait until the world has loaded

3. You either see already the bug, or you have to move about 100 blocks away, stay there a little bit and then come back (Render distance 12 chunks)

Contributing to finding the cause

Currently very little is known about this bug, so it would be really kind if you can contribute to finding the reason why this happens by providing your experience.

If you want to discuss about this bug, please visit the therefor created reddit thread.
In general it is pretty usefull if you leave the launcher open and eventually have a look at the Game Output. Therefor you need to follow these steps:

1. Click Edit Profile

2. Tick Launcher Visibility

3. Select Keep the launcher open

4. Click Save Profile
   If you experience this bug, please comment with a comment of this format:

   - Minecraft version: ###
   - World generated in: ###
   - Seed: ###
   - World type: ###
   - Generator options: {code}###{code}
   - Coordinates (tp-command): {{###}}
   - Happens in village: YES/NO
   - Blocks placed by player: YES/NO
   - Screenshot name: {{###}}
   - Additional information: {quote}###{quote}

How to fill in the information

In general remove only the ### and replace it with the information. If you do not know the information, please write a hyphen (-). For fields with YES/NO please leave either YES, NO or a hypen (-).

• Minecraft version: The Minecraft version you are experiencing this bug.

• World generated in: The Minecraft version you generated the world in. (Please change this only if you change the seed and coordinates as well)

• Seed: The seed of the world. You can get this by using the /seed command (it might be easier to use it in a command block and copy the seed there from the output, or copy it from the Game Output of your launcher).

• World type: The world type the world you experienced the bug in is. Possible world types are: Default, Superflat, Large Biomes, Amplified and Customized

• Generator options: The generator options used for the world. For Default, Large Biomes and Amplified this is empty. For Superflat you can press recreate and get there in the settings the information. For Customized you have to use tools like NBTExplorer and get the value of the generatorOptions tag in the level.dat file of your world.

• Coordinates (tp-command): The coordinates where you experienced the bug. Please add them as /tp command in this form: /tp X Y Z

• Happens in village: Whether or not this happened in a village

• Blocks placed by player: Whether or not you placed blocks and it affected these blocks. If so please try to reproduce it also with a recreated world without you placing blocks.

• Screenshot name: If you add a screenshot you can add here the name of the screenshot.

• Additional information: Additional information which you think are important to help finding the cause. This can be for example your OS or other bugs you experience (which not everyone experiences).

Getting the world information on a server

If you experience this on a server and you are not an operator, please ask the owner very politely if he or she could hand you out the information you need.

Gettings the seed on a singleplayer world without cheats

If you have cheats disabled in your singleplayer world, you can press do this:

1. Press ESC (Escape)

2. Click on Open to LAN

3. Set Allow Cheats to ON

This error is very rare.

Confirmed of 15w36d

Video :
https://www.youtube.com/watch?v=gmulXX7QJxA&feature=youtu.be