[MC-3703] Redstone changing orientation doesn't update previously powered blocks correctly Created: 22/Nov/12  Updated: 02/Aug/24

Status: Reopened
Project: Minecraft: Java Edition
Component/s: None
Affects Version/s: Minecraft 1.4.4, Minecraft 1.4.6, Minecraft 1.4.7, Snapshot 13w01b, Snapshot 13w09a, Snapshot 13w09b, Snapshot 13w09c, Snapshot 13w10a, Minecraft 1.5, Snapshot 13w11a, Minecraft 1.5.1, Minecraft 1.6.4, Minecraft 13w42b, Minecraft 13w43a, Minecraft 1.7.1, Minecraft 1.7.2, Minecraft 13w48a, Minecraft 13w48b, Minecraft 13w49a, Minecraft 1.7.3, Minecraft 1.7.4, Minecraft 14w02b, Minecraft 14w02c, Minecraft 1.7.9, Minecraft 14w20b, Minecraft 14w21a, Minecraft 14w21b, Minecraft 14w33a, Minecraft 1.8, Minecraft 1.8.1-pre3, Minecraft 1.8.1, Minecraft 1.8.3, Minecraft 1.8.8, Minecraft 15w39c, Minecraft 15w44b, Minecraft 15w45a, Minecraft 15w46a, Minecraft 15w50a, Minecraft 15w51b, Minecraft 16w05b, Minecraft 1.9.4, Minecraft 1.10 Pre-Release 1, Minecraft 1.10.2, Minecraft 16w32a, Minecraft 16w32b, Minecraft 16w33a, Minecraft 16w35a, Minecraft 16w40a, Minecraft 16w44a, Minecraft 17w06a, Minecraft 1.12, Minecraft 1.12.2, Minecraft 17w50a, Minecraft 18w01a, Minecraft 1.13-pre3, Minecraft 1.13-pre6, Minecraft 1.13-pre7, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 1, Minecraft 1.14.2 Pre-Release 2, 1.15.2, 20w13b, 20w18a, 20w19a, 20w20b, 20w21a, 20w22a, 1.16 Pre-release 3, 1.16 Pre-release 5, 1.16.1, 20w30a, 1.16.2 Pre-release 1, 1.16.2 Release Candidate 1, 1.16.2, 1.16.3 Release Candidate 1, 1.16.3, 1.16.4 Pre-release 2, 1.16.4, 20w46a, 20w48a, 20w49a, 20w51a, 1.16.5, 1.17.1, 1.18.1, 1.19.2, 22w43a, 1.19.4 Pre-release 1, 1.20, 1.21
Fix Version/s: None

Type: Bug
Reporter: Marcono1234 Assignee: Unassigned
Resolution: Unresolved Votes: 49
Labels: blockupdate, redstone

Attachments: PNG File 2013-03-01_01.21.12.png     PNG File 2017-10-04_14.14.30.png     PNG File 2017-10-04_18.14.13.png     PNG File Redstone bug.png    
Issue Links:
Duplicate
is duplicated by MC-11113 Deviation redstone Resolved
is duplicated by MC-13045 Redstone Torch BUD Resolved
is duplicated by MC-17241 Placing a comparator doesnt update th... Resolved
is duplicated by MC-27238 Redstone Lamp Not Powered Correctly Resolved
is duplicated by MC-41318 Redstone torch is on, even though it'... Resolved
is duplicated by MC-44459 Redstone doesn't power when a block c... Resolved
is duplicated by MC-55870 Redstone-Torch doesn't update Resolved
is duplicated by MC-92678 Repeater BUDdiness Resolved
is duplicated by MC-93296 Redstone Torch does not update to signal Resolved
is duplicated by MC-94405 when i first power the lamp then pist... Resolved
is duplicated by MC-94469 redstonewhen powers the block in a no... Resolved
is duplicated by MC-96769 Redstone Resolved
is duplicated by MC-108637 Redstone torch not update properly Resolved
is duplicated by MC-119603 Redstone connectivity doesn't properl... Resolved
is duplicated by MC-120975 Redstone components don't update when... Resolved
is duplicated by MC-124698 Redstone wire on hopper and redstone ... Resolved
is duplicated by MC-132819 Weird redstone behavior with slabs Resolved
is duplicated by MC-152225 Redstone not correctly updating Torch Resolved
is duplicated by MC-176773 Redstone not properly updating on red... Resolved
is duplicated by MC-181690 Redstone line does not update after r... Resolved
is duplicated by MC-184022 Redstone repeater won't be powered af... Resolved
is duplicated by MC-184639 Redstone does not fully update from b... Resolved
is duplicated by MC-184659 Redstone line being bugged when indir... Resolved
is duplicated by MC-184706 piston and probably other redstone bl... Resolved
is duplicated by MC-189307 moving target block such that redston... Resolved
is duplicated by MC-206729 Inconsistency with block updates when... Resolved
is duplicated by MC-211392 repeat command block gets powered by ... Resolved
is duplicated by MC-216671 Blocking a vertical connection of red... Resolved
is duplicated by MC-238144 Repeater Not Activating and Deactivating Resolved
is duplicated by MC-245418 Target block does not update redstone... Resolved
is duplicated by MC-256915 Blocks not updating if powered by red... Resolved
is duplicated by MC-263408 Redstone dust behavior change? Resolved
Relates
relates to MC-8645 Redstone wire receiving level 1 power... Resolved
relates to MC-2255 Redstone wire uses different criteria... Resolved
CHK:
Confirmation Status: Confirmed
Category:
Redstone
Mojang Priority: Normal
Area: Platform

 Description   

The bug

When a line of redstone dust updates and does not / points at a block, the block is not updated under certain circumstances. (redstone redirection)

Affected situations

  • Block connecting to redstone dust is placed. This includes all blocks that connect to redstone dust (like repeaters, levers...) without creating a redstone signal, see Redstone bug.png
  • Redstone dust which was blocked before connects, see 2013-03-01_01.21.12.png
  • Redstone dust connecting downwards from glowstone (see 2017-10-04_14.14.30.png), slabs, hoppers, redstone blocks (see also MC-123850)


 Comments   
Comment by BeeTeeKay64 [ 02/Aug/24 ]

Affects 1.21

Comment by [Mod] ampolive [ 21/Jul/21 ]

Can confirm in 1.17.1.

Comment by Artyom [ 14/May/20 ]

Confirmed for 20w20b.

Comment by Artyom [ 09/May/20 ]

Confirmed for 20w19a.

Comment by Artyom [ 29/Apr/20 ]

Confirmed for 20w18a.

Comment by [Mod] NeunEinser [ 23/Jun/18 ]

Can confirm for 1.13-pre3

Comment by [Mod] Neko [ 04/Jan/18 ]

Just because a bug is useful to technical users does not justify calling it a feature or leaving it as is.

Comment by Timothy Miller [ 04/Jan/18 ]

It seems that technical users find this behavior to be extremely useful, while pretty much nobody finds it to be harmful. BUDs weren't initially intended, but it's one of those "emergent behaviors" that even Mojang developers have acknowledged it as being generally productive and desirable, even if some less experienced uses may initially find it to be unintuitive. Intuitive behavior is always a good objective, but we can see how trying to make redstone more intuitive has basically made it broken and useless in Bedrock edition, while at the same time introducing even uglier bugs and even more nondeterminism.

If you want to see an example of productive use of this feature, check out this video: https://www.youtube.com/watch?v=vMYygzMYUs4&feature=youtu.be

I suggest marking this but as "works as intended" or "won't fix," because of all the frustration "fixing" it would cause.

Any further discussion, we can move to /r/mojira or the EigenCraft discord.

Thanks.

Comment by Levi Claypan [ 22/Jul/17 ]

Still happens in Minecraft 1.12, i think

Comment by [Mod] redstonehelper [ 29/Sep/15 ]

Gave the ticket to Marcono1234.

Comment by Marcono1234 [ 29/Sep/15 ]

Confirmed for

  • 15w39c
Comment by Aaron Rhodes [ 24/Feb/15 ]

Still happens in 1.8.3

Comment by Galaxy_2Alex [ 25/Oct/14 ]

Reopened, Thanks.

Comment by kbk [ 25/Oct/14 ]

Yes. Tails' device behaves just as in description.

Comment by kbk [ 13/Aug/14 ]

14w33a - not fixed

Comment by kbk [ 31/May/14 ]

No, Tails' device still exploits this bug like it ever did.

Comment by Marcono1234 [ 31/May/14 ]

*Confirmed for 14w21b

Comment by Mustard Sheep [ 10/Jan/14 ]

Still here in snapshot 14w02c ...

Comment by João Mambelli [ 06/Mar/13 ]

With "detector rails" also works, alias, you can move the rails with pistons without breaking, that is also a bug?

Comment by kbk [ 01/Mar/13 ]

Hmmm. This looks too stable and consistent to be a BUD... at first glance.
I toggle the switch - torch goes off - piston retracts - redstone orientation changes - torch magically stays depowered. Then I toggle the switch again - torch magically regains power - piston extends - redstone reorientates to correct state. I get this 100% of the time, but when left alone for some time in this magic state, torch updates itself and piston performs a cycle. Such a funny device...

The pistonless setup on the first screenshot works as expected to me though.

Comment by Tails [ 01/Mar/13 ]

Reproduced in 13w09b: A little "random BUD-Flop" as seen in the screenshot. Observe how the torch is off eventhough no wire is connected. (the randomness comes from the fact that the torch receives updates randomly)

Comment by kbk [ 01/Mar/13 ]

Could not reproduce in 13w09b.

Comment by Tails [ 04/Jan/13 ]

Still in 13w01b.

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