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Type: Bug
Resolution: Unresolved
Fix Version/s: None
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, 1.15 Pre-release 7, 1.15, 1.15.1, 1.15.1 Pre-release 1, 1.15.2 Pre-Release 1, 1.15.2 Pre-release 2, 1.15.2, 20w06a, 20w07a, 20w08a, 20w09a, 20w10a, 20w11a, 20w13a, 20w13b, 20w14a, 20w15a, 20w17a, 20w18a, 20w19a, 20w20a, 20w20b, 20w21a, 20w22a, 1.16 Pre-release 3, 1.16 Pre-release 5, 1.16 Pre-release 7, 1.16 Pre-release 8, 1.16 Release Candidate 1, 1.16, 1.16.1, 20w28a, 20w30a, 1.16.2 Pre-release 1, 1.16.2 Release Candidate 1, 1.16.2 Release Candidate 2, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4 Pre-release 1, 1.16.4 Pre-release 2, 1.16.4 Release Candidate 1, 1.16.4, 20w46a, 20w48a, 20w51a, 21w03a, 1.16.5, 21w05a, 21w05b, 21w06a, 21w07a, 21w11a, 21w15a, 1.17 Pre-release 2, 1.17, 1.17.1 Release Candidate 2, 1.17.1, 21w37a, 21w44a, 1.18.1, 1.19.3, 23w03a, 1.19.4, 1.20 Pre-release 1, 1.20.1, 23w32a, 24w09a, 1.20.5, 1.21.3
Labels:
- block-update
- bulk
- event
- observer
- trigger

Confirmation Status:
Confirmed
Category:

Block states, Redstone
Mojang Priority:
Low
Area:
Gameplay

The bug

Observer blocks do not detect the following actions:

Chests opening/closing
Ender chests opening/closing
Lighting a nether portal
When a command block is successful (can be detected with a comparator)
Beacon activating/deactivating
Something teleported by the end gateway
Ringing a bell by hand or by projectile
Brewing stands finish brewing a potion
Ender dragon head being powered/unpowered
Left clicking a note block (might be intended)

Fixed

• Fixed in an unknown version (presumably in a 1.17 snapshot):

Grass blocks changing into podzol blocks when a 2x2 spruce tree grows

• Fixed in 20w14a:

Don't react to the state change of fences/walls/bars/panes when a tree grows next to them

• Fixed in 1.14.2:

Shulker Boxes opening/closing
Don't react to the state change of fences/walls/bars/panes when large mushrooms grow next to them

• 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

is duplicated by

MC-57906 Sponges don't cause block updates

Resolved

MC-107417 Shulker Box isn't creating a Block-Update while opening/closing it

Resolved

MC-107443 Will not be output from the observer block also open the shulker box

Resolved

MC-107535 Observer Blocks Do'nt Check For Doors Opening And Closing

Resolved

MC-107604 Observers won't activate for doors

Resolved

MC-107649 Observer Blocks Don't check/detected age crops (cocoa, potato, etc.)

Resolved

MC-107650 Observer Blocks Don't check/detected when chorus flower change to chorus plant.

Resolved

MC-107651 Observer Blocks Don't check/detected changes in the number of layers snow.

Resolved

MC-107652 Observer Blocks Don't check/detected when dry sponge changes to wet sponge.

Resolved

MC-107653 Observer Blocks Don't check/detected if the player plays the note block.

Resolved

MC-107654 Observer Blocks Don't check/detected change damage anvil

Resolved

MC-107655 Observer Blocks Don't check/detected when tall grass change to double grass (with bone meal)

Resolved

MC-107685 Observers don't detect item frame updates - Pocket Edition and PC Edition feature imparity

Resolved

MC-108250 When an Ender Dragon Egg teleports and appears next to an observer block, it does not trigger it.

Resolved

MC-108434 Shulker Box's opening isn't detected by the observer

Resolved

MC-108455 Observer not noticing door open/close

Resolved

MC-108606 Observer block not detecting redstone lamp toggle

Resolved

MC-109105 Observer block no longer creates signal output from updating command blocks.

Resolved

MC-109257 Observer does not detect update the repeater when the repeater is active with redstone signal.

Resolved

MC-109297 Observer blocks don't detect repeaters and comparators powering/unpowering in front of them.

Resolved

MC-109434 Observers don't detect when beacon beam is on/off

Resolved

MC-109504 Observer does not detect update the repeater in snapshot 16w43a

Resolved

MC-109821 Observer can't detect the change of facing of Pumpkin/Melon Stem

Resolved

MC-109891 Observers Can't Detect Redstone Wire's Side Change

Resolved

MC-110533 Changes in melon/pumpkin stems don't get detected by observer

Resolved

MC-115408 When being observed, a door which is opened by the player only triggers an update from the bottom block but if opened by redstone it updates both.

Resolved

MC-116967 Pumpkin stem

Resolved

MC-140960 Bells don't trigger observers when rung

Resolved

MC-148137 bell does not emit redstone signal when touched

Resolved

MC-149415 bell doesent create a block update(even tho it is) that can be registered by an observer

Resolved

MC-157297 Observers don't detect chests and enderchests being opened

Resolved

MC-161164 A bug with how observers see ringing bells

Resolved

MC-174554 Bells don't give observer outputs

Resolved

MC-188982 observers do not detect bells update not a player

Resolved

MC-190934 When lighting a nether portal, no updates are sent to observers

Resolved

MC-193444 Observer's and chests

Resolved

MC-196767 bells when rung arent detected as a block update

Resolved

MC-196778 observer doesn't detect bell ring

Resolved

MC-196779 observer doesn't detect chest opening and closing

Resolved

MC-196857 Observers do not detect when Dragon Heads are powered

Resolved

MC-197172 Opening chest not detected by observer

Resolved

MC-199191 Turning Grass into Podzol by planting a giant spruce tree does not activate Observers pointed towards the Grass.

Resolved

MC-200637 Beacons turning on don't trigger observers

Resolved

MC-210313 Shulker Boxes Opening/Closing Not Detected

Resolved

MC-214759 observer doesn't detect the lighting of a nether portal

Resolved

MC-217496 Beacon block states not observable/detectable

Resolved

MC-223608 Nether Portals do not cause block updates when lit.

Resolved

MC-225798 Nether Portal Anomaly

Resolved

MC-233304 Ringing bells does not activate an observer

Resolved

MC-234461 creating a nether portal does not provide blockstate change or blockupdate

Resolved

MC-268970 Chests and Trapped Chests do not output a Redstone signal.

Resolved

MC-278384 Beacon-Observer interactions

Resolved

relates to

MC-220636 Missing block update when sponge absorbs water

Reopened

MCPE-183942 Observers do not detect brewing stands finishing brewing

Open

MC-5898 Lamps, Signs Fence Gates, and sheep eating grass don't give block updates!

Resolved

MC-109591 Detecting the block states not saved in meta data does not work

Resolved

MC-109659 The observer only detected upgrade top of the door if opened/closed with energy (button, lever, etc.), but not with your hand.

Resolved

MC-131014 Observers and block states not updated by tree growth

Resolved

MC-167853 Observer doesn't detect when a grass block changes to dirt if a tree grows on top

Resolved

MC-180771 Observer not updating when tree grows leaves in front of it

Resolved

MC-199558 Dragon heads do not store being powered as a block state

Resolved

(47 is duplicated by, 9 relates to)

Assignee:: Unassigned

Reporter:: [Mod] CubeTheThird

Votes:: 126 Vote for this issue

Watchers:: 51 Start watching this issue

Created:: 29/Sep/16 12:55 AM

Updated:: 2 days ago 7:54 AM

CHK:: 16/Jun/20 11:30 PM

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The bug

Fixed

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