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High allocation rate due to component serialization errors

unconfirmed

Status: Open.

#1181 In ViaVersion/ViaBackwards;

· OverwriteMC opened on Jan 12, 2026

The item settings component in server version 1.21.11 is no longer working in version 1.21.1.

unconfirmed

Status: Open.

#1177 In ViaVersion/ViaBackwards;

· craftorigin opened on Jan 9, 2026

1.12.2 Connection closes when moving inventory item on 1.21.5 server

unconfirmed

Status: Open.

#1161 In ViaVersion/ViaBackwards;

· brebathe opened on Dec 29, 2025

[1.21.5->1.21.4] Frog Entity Color Issue

Plausible

Status: Open.

#1145 In ViaVersion/ViaBackwards;

· Pantera07 opened on Dec 4, 2025

Item flags not send to 1.9 on 1.21.8 server.

unconfirmed

Status: Open.

#1125 In ViaVersion/ViaBackwards;

· thelipe7 opened on Oct 24, 2025

Strange issues when switching servers

unconfirmed

Status: Open.

#1123 In ViaVersion/ViaBackwards;

· LBuddyBoy opened on Oct 18, 2025

ItemFlags are not hidden on old clients

unconfirmed

Status: Open.

#1121 In ViaVersion/ViaBackwards;

· Schneeeulen opened on Oct 17, 2025

[Question]: What is the issue with recipe books?

Feature RequestSuggest a change/featureSuggest a change/feature

Status: Open.

#1106 In ViaVersion/ViaBackwards;

· WhatYouTalkinAbout opened on Sep 29, 2025

Nametags are invisible for lower versions if Display Entities 1.19.4+ feature is used

can't reproduce

unconfirmed

Status: Open.

#1064 In ViaVersion/ViaBackwards;

· MorkaZ opened on Jul 10, 2025

Ghastling scale adjustment using new scale attribute

Feature RequestSuggest a change/featureSuggest a change/feature

Status: Open.

#1058 In ViaVersion/ViaBackwards;

· VeVeVeVel opened on Jul 9, 2025

Failed to decode packet 'clientbound/minecraft:set_entity_data'

can't reproduce

Status: Open.

#1052 In ViaVersion/ViaBackwards;

· DarkChromaMC opened on Jul 3, 2025

Sneak desync on vehicle dismount. 1.21.1 client -> 1.21.4 server (2)

unconfirmed

Status: Open.

#1045 In ViaVersion/ViaBackwards;

· Leymooo opened on Jun 24, 2025