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  1. Minecraft: Java Edition
  2. MC-49755

OS X: Pressing arrow or Fn keys in sign/command block/book and quill inserts invisible characters



    • Bug
    • Status: Resolved
    • Resolution: Fixed
    • Minecraft 1.7.4, Minecraft 14w05b, Minecraft 14w06b, Minecraft 14w07a, Minecraft 14w08a, Minecraft 1.7.5, Minecraft 14w10b, Minecraft 14w10c, Minecraft 14w11b, Minecraft 1.7.9, Minecraft 14w17a, Minecraft 14w18a, Minecraft 14w20b, Minecraft 14w21a, Minecraft 14w21b, Minecraft 1.7.10-pre1, Minecraft 1.7.10-pre2, Minecraft 1.7.10-pre3, Minecraft 14w25b, Minecraft 14w28b, Minecraft 14w34d, Minecraft 1.8.1-pre3, Minecraft 1.8.1-pre4, Minecraft 1.8.4, Minecraft 1.8.8, Minecraft 15w31c, Minecraft 15w39c, Minecraft 15w43c, Minecraft 15w45a, Minecraft 15w47b, Minecraft 15w49a, Minecraft 1.8.9, Minecraft 15w50a, Minecraft 15w51b, Minecraft 16w02a, Minecraft 16w03a, Minecraft 16w04a, Minecraft 16w05b, Minecraft 16w06a, Minecraft 16w07a, Minecraft 16w07b, Minecraft 1.9 Pre-Release 1, Minecraft 1.9 Pre-Release 2, Minecraft 1.9 Pre-Release 3, Minecraft 1.9 Pre-Release 4, Minecraft 1.9, Minecraft 1.9.1 Pre-Release 1, Minecraft 1.9.1 Pre-Release 2, Minecraft 1.9.1 Pre-Release 3, Minecraft 1.9.1, Minecraft 1.9.2, Minecraft 1.9.3 Pre-Release 1, Minecraft 1.9.3 Pre-Release 3, Minecraft 1.9.4, Minecraft 16w20a, Minecraft 16w21a, Minecraft 16w21b, Minecraft 1.10 Pre-Release 1, Minecraft 1.10 Pre-Release 2, Minecraft 1.10, Minecraft 1.10.1, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w35a, Minecraft 16w36a
    • Minecraft 17w43a
    • Mac OS X 10.9.2
      Java 7
    • Confirmed


      While typing a command into a command block, if you press either the up or down arrow key, it will insert an invisible character into the command block that can cause the command to not execute correctly.

      Steps to Reproduce:
      1. Place down a command block
      2. Type in a command, like "/say" then type the up or down arrow, then continue with " hi"
      3. Power the command block with redstone and it says unknown command because pressing the arrow key inserted a character after "say", so the command block saw "say(character here)" and didn't recognize the command. (An invisible character was inserted into the command. You can tell because if you hit backspace on it, then the cursor doesn't move.)

      Or, alternatively:
      1. Place a sign
      2. Enter some text on the first line
      3. Hit the down arrow to switch to the second line
      4. Hit the up arrow to go back to the first line
      5. Hit backspace, nothing happens - only when hitting backspace again or typing something before will backspace work

      Also affects book and quills.

      More info: https://bugs.mojang.com/browse/MC-49755?focusedCommentId=312775&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-312775

      Postponed until Minecraft has updated to LWJGL 3 according to grum.


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              Unassigned Unassigned
              nc99 Nicolas Chan
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