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  1. Minecraft: Java Edition
  2. MC-215270

Moss requires air above a replaceable block to spread

    • Icon: Bug Bug
    • Resolution: Unresolved
    • 21w16a
    • 21w06a, (27)
      21w07a, 21w10a, 21w11a, 21w13a, 21w14a, 21w15a, 21w16a, 21w17a, 1.17, 1.17.1, 21w43a, 1.18, 1.18.1, 1.18.2, 22w11a, 22w14a, 1.19 Pre-release 1, 1.19, 1.19.1 Pre-release 6, 1.19.2, 22w46a, 1.19.4, 23w14a, 1.20.1, 1.20.4, 24w34a, 1.21.4
    • Confirmed
    • Block states
    • Normal
    • Gameplay

      The bug

      When using bone meal on moss blocks, they are supposed to turn the adjacent blocks into moss blocks, however if the block has a torch, chain block, iron bar, fence, or any other block on top of them, the moss does not spread.

      How to reproduce

      1. Place a moss block with stone next to it, with a torch on top of the stone
      2. Apply bone meal to the moss block
        The moss does not spread to the stone

      Expected behavior

      The moss would spread to the stone regardless of whether or not a block is present above the stone.

          [MC-215270] Moss requires air above a replaceable block to spread

          [Mod] Avoma added a comment -

          Can confirm in 1.19.

          [Mod] Avoma added a comment - Can confirm in 1.19.

          windwend added a comment -

          Related to MC-227361.

          windwend added a comment - Related to MC-227361 .

          [Mod] Avoma added a comment -

          Can confirm in 21w11a. Relates to MC-249233.

          [Mod] Avoma added a comment - Can confirm in 21w11a. Relates to MC-249233 .

          [Mod] Avoma added a comment -

          Can confirm in 1.18.2.

          [Mod] Avoma added a comment - Can confirm in 1.18.2.

          MMK21 added a comment -

          Relates to MC-185353

          MMK21 added a comment - Relates to MC-185353

          [Mod] Avoma added a comment -

          Can confirm in 1.18.

          [Mod] Avoma added a comment - Can confirm in 1.18.

          [Mod] Avoma added a comment -

          I am able to confirm this behavior in 21w43a. Here are some extra details regarding this problem.

          The Bug:

          Moss requires air to be above blocks that it can replace, in order to spread.

          Steps to Reproduce:

          • Build the setup as shown in the attachment below. setup.png
          • Apply some bone meal to the moss block.
          • Take note as to whether or not moss was able to spread underneath the torch, fence, wall, or glass pane.

          Observed Behavior:

          Moss requires air to be above blocks that it can replace, in order to spread.

          Expected Behavior:

          Moss would not require air to be above blocks that it can replace, in order to spread.

          [Mod] Avoma added a comment - I am able to confirm this behavior in 21w43a. Here are some extra details regarding this problem. The Bug: Moss requires air to be above blocks that it can replace, in order to spread. Steps to Reproduce: Build the setup as shown in the attachment below. setup.png Apply some bone meal to the moss block. Take note as to whether or not moss was able to spread underneath the torch, fence, wall, or glass pane. Observed Behavior: Moss requires air to be above blocks that it can replace, in order to spread. Expected Behavior: Moss would not require air to be above blocks that it can replace, in order to spread.

          [Mod] Avoma added a comment -

          Can confirm in 1.17.1.

          [Mod] Avoma added a comment - Can confirm in 1.17.1.

          Can confirm in 1.17.1 Release Candidate 2.

          [Mod] ampolive added a comment - Can confirm in 1.17.1 Release Candidate 2.

          [Mod] Avoma added a comment -

          Can confirm in 1.17.

          [Mod] Avoma added a comment - Can confirm in 1.17.

            Unassigned Unassigned
            Lickfold Jose Lickfold
            Votes:
            18 Vote for this issue
            Watchers:
            7 Start watching this issue

              Created:
              Updated:
              CHK: