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MC-305475

Tripwire above the player's head gets triggered twice when jumping

When tripwire placed above player head and player jumps straight above it gets triggered twice.
Connected to copper lamp displays the issue clearly - upon single tripwire trigger lamp should stay on but it immediately goes off.

Very high reproduce rate. Check attached video. When jumping below tripwire it’s reproduced almost every time.
There is sound clue when the issue is happening:
1. Bug reproduced - tripwire clicks 3 times
2. Bug not reproduced - tripwire clicks 2 times

Setup:
At 3 blocks height attach tripwire with strings 2 blocks long, add copper lamp. Trigger tripwire jumping from below.
Copper lamps can be placed at 3 blocks height and tripwire attached to it to further simplify the setup.

Placing tripwire on chunks border or inside a chunk does not change the behavior. Lamp is just to show the problem, it is reproducible with just two connected tripwire hooks.

In this video: the problem is recreated in a first try. Lamp goes on on tripwire trigger. It gets triggered another time without me triggering it. Lamp goes off. It should stay on.

https://www.youtube.com/watch?v=IUG2wrb9zms

Environment

1.21.11 both client and server (local)

Comments 1

Continuation of MC-305361 with new information since I can’t reopen a ticket.

Konon Kononowicz

(Unassigned)

Confirmed

Platform

Important

Redstone

1.21.11

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