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MC-142192

Pistons can conduct redstone signal while retracting

A redstone signal can pass through a piston like how it would be if you powered a block by repeater / redstone torch, but only when the piston is retracting.

This is similar to the bug reported here, except the examples shown there no longer work in 19w02a.
Except I found cases where the bug still works, as shown in the video below.

What I expected to happen was...:
Redstone signal should not have passed through the piston

What actually happened was...:
I could retrieve a redstone signal output from the piston, but only during the piston's retraction.

Steps to Reproduce:
Video shows examples and easy redstone contraptions to reproduce bug.

Youtube Video

More examples can be found in ilmango's video: https://www.youtube.com/watch?v=XxMa0O5rAiw
 

Linked issues

Comments 5

user-f2760

This is actually a duplicate of MC-140554, not related. (Though this ticket describes the bug much better.)

[Mod] Neko

Agreed, will forward-resolve.

Raps Callion

Given this is a duplicate of MC-140554, shouldn't this be marked as Confirmed?

Adrian Östergård

Is this still an issue in 19w12b?

violine1101

Yes it is, see MC-146539

ekul6547

Fry

Confirmed

Redstone

piston, redstone

Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 19w12b

Minecraft 19w13b

Retrieved