ModsFinder

Iron Chest Fix

by MKxingsheng

Iron Chest Fix corrects an animation desync that players see on Iron Chests in multiplayer, where chest lids can show different states on different clients.

ForgeClient and serverAll rights reserved1.12.2

What it does

Chest lids in multiplayer can end up animated differently for each player, so a chest may look open to one person and closed to another. Iron Chest Fix replaces the lid animation logic with a more reliable state machine, so every player sees the same synchronized animation. It supports both the original Iron Chests branch and Iron Chests with Netherite Chest, and it needs Iron Chests and MixinBooter. Builds exist for Forge only, for 1.12.2, and the mod runs on client and server, so the server and every player need it.

Key features

  1. Synchronized lid animation

    Chest lids open and close in the same state for every player on a server, removing the desync seen in multiplayer.

  2. Animation state machine

    The lid logic is rebuilt as a more reliable state machine that tracks each chest's animation state.

  3. Two Iron Chests branches

    The fix works with the original Iron Chests and with the variant that adds Netherite Chest.

Compatibility

Latest build for each game version and loader.

1.12.21.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

Iron ChestsIron Chests mod has chests for the various metals in vanilla minecraft with varying sizes!
Required
MixinBooterThe Mixin Library for 1.8 - 1.12.2.
Required

Optional 1

Iron Chests (with Netherite Chest)A fork of Iron Chest for 1.12 adding a Netherite Chest
Optional

Questions

Does Iron Chest Fix need Iron Chests?

Yes. Iron Chests is a required dependency, and MixinBooter is required as well. Both must be installed next to Iron Chest Fix.

Does the mod have to be installed on the server?

Yes. Servers that run it need every player to install it too.

In the catalog

Iron Chest Fix is one of 3,545 Optimization mods on ModsFinder, and one of 1,441 Optimization mods for Forge. 2,920 mods support Minecraft 1.12.2.

Optimization mods3,545Forge modsMods for 1.12.22,920

More from MKxingsheng

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Bed Spawn Backport1.12.2

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What the author says

Have you ever noticed that when your friend opens an Iron Chest in multiplayer, the chest still appears closed on your screen? If you've encountered this issue, this is the mod you need! * This mod fixes the animation desynchronization issue of Iron Chests in multiplayer.
MKxingsheng, on the Modrinth page

Official listing

Owner
MKxingsheng
Published
2026-07-29
Updated on Modrinth
2026-07-29
Facts verified
2026-10-15

Tags

OptimizationStorageUtilityCursed
Open on ModrinthCompare