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  1. Minecraft: Java Edition
  2. MC-133664

modifying valid_spawn crashes the game

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    • Icon: Bug Bug
    • Resolution: Duplicate
    • None
    • Minecraft 1.13-pre9
    • None
    • Unconfirmed

      Modifying the file /datapacks/MyDatapack/data/minecraft/tags/blocks/valid_spawn.json to contain less then 2 values will crash the game (Crash Report attached)
       

      (the game crashes once a mob is tryed to be spawned.)

       

      Depending on the Crash report i woud assume the game is trying to choose a random block of that list using the Random class. I guess the value "2" is hardcoded in such a way that the bound will be below 0 if the amount of blocks in the list isnt 2 or higher.
      Depending on this, i also assume any block above the second element will be ignore, but i had to investigate further for that.

      Edit 1: It appears that any edit to the file will crash the game

            Unassigned Unassigned
            Hurricankai HurricanKai
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