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Minecraft 18w03b
Java Edition 18w03b.png

Java Edition



Release date

January 17, 2018

Snapshot for



Client (.json)

Protocol version


Data version


18w03b[1] is the fifteenth snapshot released for Java Edition 1.13, which fixed bugs.


33 issues fixed
From released versions before 1.13
  • MC-12699 – Some PNGs using grayscale or tRNS are processed incorrectly.
  • MC-32522 – Confusing error message when targeting a location in an unloaded chunk.
  • MC-50795 – CanDestroy and CanPlaceOn can be used with item ID's instead of the names.
  • MC-52036 – using testfor in execute command failure.
  • MC-55592 – The wildcard * fits into wrong commands without error.
  • MC-58809 – Scoreboard teams add "@e" doesn't work correctly.
  • MC-69822 – Command help strings and feedback say "player" when entities are applicable as well.
  • MC-70010 – Double plants can be placed at and grow at y = 255 resulting in incomplete double plant.
  • MC-78780/fill hollow and destroy calculates number of blocks incorrectly.
  • MC-78920 – Incorrect /gamerule syntax (typing only /gamerule doesn't return any error).
  • MC-86321 – Scoreboard players tag won't autofill/tab-complete tag argument.
  • MC-89428 – Rails update other rails before checking if they are in a valid location when moved by pistons.
  • MC-93908 – Fireball only flies in 1 direction when hitting it by bow/snowball while running a /tp command.
  • MC-99748 – scoreboard teams join and leave not showing error message for missing player argument in command blocks.
  • MC-103744 – Misaligned text in world creation page for Unicode fonts.
  • MC-105050 – Some blocks are tracked in statistics/objectives for similar blocks despite having their own space to be tracked.
  • MC-105918 – Lose of item on kick while in anvil.
  • MC-110863 – Custom name of double chest is not set for both chests and is based on direction.
  • MC-113880 – Items of replaceable blocks appear to successfully replace the same block in the world even though they do not.
  • MC-113962 – Error message "Entity ... cannot be found" is shown when multiple entities match selector but only a single entity is expected.
  • MC-114243 – clone command syntax help is missing filtered case.
  • MC-115270 – Can use /publish to host multiple LAN worlds.
  • MC-115913 – Attempting to fill an area with blocks consisting of multiple parts causes an unknown error.
  • MC-116758 – Enter/exit nether, server reports: <player> moved too quickly.
  • MC-118019/execute does not center absolute horizontal integer coordinates on block.
  • MC-118037 – commandBlockOutput = false does not show command feedback of commands executed for player.
  • MC-119741 – Relative directions in teleport are relative to player targets rather than executer.
  • MC-121233 – Tab-completing a function name (with a ton of available functions) kicks the player.
From the 1.13 development versions
  • MC-121640 – Fullscreen size change feature doesn't work properly.
  • MC-122883 – Game crash when players suicide or kill other players: java.lang.NullPointerException: Ticking entity.
  • MC-123898 – When using zipped data packs, functions are not recognized in function tags.
From the previous development version
  • MC-124348 – Using data get to get an element of a string array says the tag doesn't exist.
  • MC-124349 – < <= = >= > all give syntax errors in "execute if/unless score".


Video made by slicedlime:


  1. "Minecraft Snapshot 18w03a" – Minecraft.net, January 17, 2018