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  1. Minecraft: Java Edition
  2. MC-107664

Some events do not trigger observers



    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: Minecraft 16w39a, Minecraft 16w39b, Minecraft 16w39c, Minecraft 16w42a, Minecraft 16w43a, Minecraft 16w44a, Minecraft 1.11 Pre-Release 1, Minecraft 1.11, Minecraft 1.11.2, Minecraft 17w06a, Minecraft 17w16b, Minecraft 1.12.2, Minecraft 17w45b, Minecraft 17w46a, Minecraft 17w47a, Minecraft 18w02a, Minecraft 18w08a, Minecraft 1.13.1, Minecraft 1.13.2-pre1, Minecraft 1.13.2, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w08b, Minecraft 19w09a, Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4, Minecraft 1.14 Pre-Release 5, Minecraft 1.14, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 1, Minecraft 1.14.2 Pre-Release 2, Minecraft 1.14.2, Minecraft 1.14.3, Minecraft 1.14.4 Pre-Release 1, Minecraft 1.14.4 Pre-Release 3, Minecraft 1.14.4 Pre-Release 4, Minecraft 1.14.4 Pre-Release 5, Minecraft 1.14.4 Pre-Release 6, 1.14.4, 19w34a, 19w35a, 19w36a, 19w37a, 19w38b, 19w39a, 19w40a, 19w41a, 19w42a, 19w45b, 19w46b, 1.15 Pre-release 1, 1.15 Pre-Release 2, 1.15 Pre-release 3, 1.15 Pre-release 4, 1.15 Pre-release 5, 1.15 Pre-release 6
    • Fix Version/s: None
    • Confirmation Status:
    • Category:
      Block states, Redstone
    • Mojang Priority:


      This report is to merge all related reports of the observer block not detecting certain things.

      Observer blocks do not detect the following block state changes:

      • Chests opening/closing
      • Ender Chests opening/closing
      • Lighting a nether portal
      • When a command block is successful 1
      • Beacon activating/deactivating
      • Something teleported by the end gateway
      • Ringing a bell by hand

      Fixed in or before 1.14.2:

      • Shulker Boxes opening/closing

      Fixed in 17w47a:

      • Playing a note block
      • Adding or removing a plant from a flower pot
      • Farmland going through intermediate stages of hydration 0–6, which appear dry
      • Locking / unlocking a redstone repeater
      • Connecting / Orientation (north, south, etc) State for Cobblestone Walls
      • Shape State for Stairs
      • Changes to the data value of fire that signifies flammable surfaces surrounding fire
      • The change of facing fences, (stained) glass panes, iron bars, pumpkin/melon stems, tripwire and redstone wire
      • Snowy State for:
        • Grass Block
        • Podzol
        • Mycelium
      • The opening/closing of the top part of a door by hand, as opposed to by redstone power.

      Fixed in 16w44a:

      • Grass/ferns growing into tall grass/tall ferns
      • Grass blocks changing to dirt due to sheep "eating" the grass
      • Anvil damage changes
      • Dragon egg teleports to a destination
      • Inserting or removing music discs from a jukebox- 1
      • Dry sponge becomes wet
      • Changes in number of snow layers
      • Placing/breaking top part of a double plant (MC-31038)
      • Chorus flower growth to chorus plant
      • Opening and closing door, trapdoor or fence gate
      • Vine/Crop growing (e.g. cocoa, potatoes, nether wart)
      • Placing/removing bottles/potions in/from brewing stands 1
      • Placing an eye of ender in an end portal block 1
      • Changing the water level of a cauldron with a glass bottle or water bucket 1
      • Switching comparators between comparison and subtraction modes.
      • Sleeping in beds.
      • Changing command block/structure block type
      • Changing command block to conditional/unconditional
      • Repeater/comparator/detector rail/activator rail/powered rail getting (un)powered
      • Nether portals be lit/activated
      • End portals be activated

      1. Can be detected with a comparator


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              • Assignee:
                cubethethird [Mod] CubeTheThird
              • Votes:
                62 Vote for this issue
                32 Start watching this issue


                • Created: