ModsFinder

GregTech Modern Bugs Fix

by phoupraw

GregTech Modern Bugs Fix is a NeoForge patch for GregTech CEu Modern on Minecraft 1.21.1 that corrects a set of specific bugs in that addon.

NeoForgeServer required, client optionalMozilla Public License 2.0Open source1.21.1

What it does

Its patches target defects that the author reports as unpatched for months, including machines not recognizing a split item stack, the EMI multiblock recipe page failing to show a stack, the prospector offhand defaulting to always ore mode, and the large bronze boiler HUD and GUI displaying incorrectly. The author says the changes are applied through Mixin, which alters code in GregTech CEu Modern, and that some fixes are fairly invasive.

GregTech CEu Modern is required and must be present alongside this mod. The project is open source under the Mozilla Public License 2.0, and its public source code and issue tracker are linked from the project. The author warns that the mod is meant for the author's own save file, that no assurance is given against new bugs, and that compatibility with pre-release builds is not promised, so saves should be backed up first.

Key features

  1. Machine item stack fix

    Machines are patched so they recognize an item stack that has been split across slots.

  2. EMI multiblock recipe page

    The EMI recipe page for multiblock machines can now show the stack it was opened for.

  3. Prospector offhand mode

    The prospector in the offhand slot is corrected so it no longer always stays in ore mode.

  4. Large bronze boiler display

    The large bronze boiler HUD and GUI are adjusted so they show correct values.

Compatibility

Latest build for each game version and loader.

1.21.10.3.0
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 1

GregTech CEu ModernModern GregTech based on GTCEu 1.12.2
Required

Questions

Does GregTech Modern Bugs Fix need GregTech CEu Modern?

Yes. GregTech CEu Modern is a required dependency, and the bug fixes only apply alongside it.

Does the mod have to be installed on clients?

No. Servers must run it, while players may leave it out and join without installing it.

Will the mod work on pre-release builds?

The author does not promise compatibility with pre-release versions, and new bugs are not ruled out, so backing up saves before installing is advised.

In the catalog

GregTech Modern Bugs Fix is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 32,366 mods support Minecraft 1.21.1.

Optimization mods3,545NeoForge modsMods for 1.21.132,366

More from phoupraw

All projects
Infinite Fluid Bucket1.20 – 1.21.1Torches in Water1.20 – 1.21.1Minimalism Leaf Decay1.20.5 – 1.21.5Mekanism Output Faster1.21.1Create's Delight1.19.2Infinite Capacity Cell1.21 – 1.21.1

Similar mods

Sodium1.16.3 – 26.3Iris Shaders1.16.5 – 26.3Entity Cullingb1.7.3 – 26.3FerriteCore1.16.5 – 26.3ImmediatelyFast1.18.2 – 26.3Sodium Extra1.16.2 – 26.3

What the author says

Fix some bugs of GregTech CEu Modern. # Content Due to the lack of developers for GTM 1.21, numerous benign and malicious bugs in GTM 1.21 have remained unpatched for months. To ensure that I (and other players) can play GTM 1.21 normally, I have created this mod. It uses Mixin to modify the code of GTM and LDLIB…
phoupraw, on the Modrinth page

Official listing

Owner
phoupraw
Published
2025-09-21
Updated on Modrinth
2025-09-25
Facts verified
2026-10-15

Tags

OptimizationUtilityLibrary
Open on ModrinthCompare