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<code>PlayerAttackEntityCooldownResetEvent</code> cancellation is non-functional

status: acceptedDisputed bug is accepted as valid or Feature accepted as desired to be added.Disputed bug is accepted as valid or Feature accepted as desired to be added.

version: 1.21.11Game version 1.21.11Game version 1.21.11

Status: Open.

Bug

#13578 In PaperMC/Paper;

· TheBentoBox opened on Jan 22, 2026

PlayerCakeEatEvent

status: needs triage

Status: Open.

Feature

#13577 In PaperMC/Paper;

· Samuraien2 opened on Jan 21, 2026

Add <code>AnvilUseEvent</code> to the API

status: needs triage

Status: Open.

Feature

#13575 In PaperMC/Paper;

· OfficialTheosis opened on Jan 21, 2026

Using defaultRenderer causes unexpected result in AsyncChatEvent

status: acceptedDisputed bug is accepted as valid or Feature accepted as desired to be added.Disputed bug is accepted as valid or Feature accepted as desired to be added.

version: 1.21.11Game version 1.21.11Game version 1.21.11

Status: Open.

Bug

#13574 In PaperMC/Paper;

· APickledWalrus opened on Jan 21, 2026

VehicleDamageEvent: Get Lightning Attacker

status: acceptedDisputed bug is accepted as valid or Feature accepted as desired to be added.Disputed bug is accepted as valid or Feature accepted as desired to be added.

Status: Open.

Feature

#13571 In PaperMC/Paper;

· CatTeaA opened on Jan 20, 2026

Bypasses_cooldown damage tag lacking in paper

status: needs triage

Status: Open.

Feature

#13566 In PaperMC/Paper;

· Clexus opened on Jan 19, 2026

Mention the use of paper-generator in CONTRIBUTING.md

status: needs triage

Status: Open.

Feature

#13563 In PaperMC/Paper;

· Doc94 opened on Jan 18, 2026

<code>World#spawnEntity</code> doesn't initialize passengers properly

status: acceptedDisputed bug is accepted as valid or Feature accepted as desired to be added.Disputed bug is accepted as valid or Feature accepted as desired to be added.

version: 1.21.11Game version 1.21.11Game version 1.21.11

Status: Open.

Bug

#13559 In PaperMC/Paper;

· molor opened on Jan 16, 2026

Add CopperGolemState API

status: acceptedDisputed bug is accepted as valid or Feature accepted as desired to be added.Disputed bug is accepted as valid or Feature accepted as desired to be added.

Status: Open.

Feature

#13558 In PaperMC/Paper;

· JakeGBLP opened on Jan 16, 2026

DialogBody + ItemStack as item crashes server

status: needs triage

version: 1.21.11Game version 1.21.11Game version 1.21.11

Status: Open.

Bug

#13555 In PaperMC/Paper;

· illyrius666 opened on Jan 15, 2026

VILLAGER AI

status: needs triage

Status: Open.

Bug

#13549 In PaperMC/Paper;

· vefariro opened on Jan 13, 2026

Client disconnect when executing commands with lots of macros

status: needs triage

version: 1.21.11Game version 1.21.11Game version 1.21.11

Status: Open.

Bug

#13548 In PaperMC/Paper;

· Seeloewen opened on Jan 12, 2026