Issues

• [1.21.1] Maximized early window is pushed behind the Windows taskbar

  neoforged/FancyModLoader#475 · Filter by author Loulouw opened on Nov 2, 2026

• [1.21.1 / FML 4.x] Backport #407: early services are not discovered through a symlinked mods directory

  neoforged/FancyModLoader#470 · Filter by author SettingDust opened on Oct 26, 2026

• LimitExceededException (Too many operations) when a mixin targets a class with a huge method

  bug
  Bug

  neoforged/FancyModLoader#465 · Filter by author Narcissus-tazetta opened on Oct 15, 2026
  7

• Move configs out from FML and into NeoForge

  breaking-changecleanup
  neoforged/FancyModLoader#460 · Filter by author sciwhiz12 opened on Oct 5, 2026

• Suggestion to add custom log4j2.xml for production modpacks.

  enhancement
  Enhancement

  neoforged/FancyModLoader#432 · Filter by author ArcaneBlackwood opened on Jul 8, 2026
  2

• [1.21.1] fml.toml -> maxThreads not respected for Common and Sided setup

  neoforged/FancyModLoader#428 · Filter by author alexoj opened on Jun 10, 2026

• MDK Broken on Aarch64 Devices

  neoforged/FancyModLoader#421 · Filter by author MorningSage opened on Apr 28, 2026
  3

• [Minor Bug] Error stacktrace is not logged

  bug
  Bug

  neoforged/FancyModLoader#409 · Filter by author Viola-Siemens opened on Jan 25, 2026
  1

• Early Loading system does not fall back to default earlyWindowProvider when the one set in the config does not exist

  bug
  Bug

  neoforged/FancyModLoader#415 · Filter by author Keksuccino opened on Jan 13, 2026

• Duplicate detection of JiJ’d libraries that have the same name but different content

  neoforged/FancyModLoader#399 · Filter by author Bawnorton opened on Dec 30, 2025
  1

• [1.21.9] Game hangs when calling java.awt.Desktop::isDesktopSupported

  neoforged/FancyModLoader#365 · Filter by author Fuzss opened on Oct 4, 2025
  3

• TerminalConsoleAppender is broken

  neoforged/FancyModLoader#364 · Filter by author haohao3001 opened on Oct 1, 2025

• Doesn't allow mods folder as symlink anymore

  neoforged/FancyModLoader#344 · Filter by author EduApps-CDG opened on Aug 25, 2025

• Log config corrections

  enhancement
  neoforged/FancyModLoader#335 · Filter by author Flemmli97 opened on Jul 21, 2025
  1

• FML rejects service layer files due to too eager fabric.mod.json check in development environment

  neoforged/FancyModLoader#288 · Filter by author UpcraftLP opened on May 22, 2025

• ModLoadingIssue translations do not work

  neoforged/FancyModLoader#287 · Filter by author UpcraftLP opened on May 22, 2025
  2

• Add mechanism for mods to abort loading

  neoforged/FancyModLoader#286 · Filter by author UpcraftLP opened on May 22, 2025
  6

• Thread stall during mod constructions prevents closing the game

  neoforged/FancyModLoader#285 · Filter by author UpcraftLP opened on May 22, 2025

• Startup ProgressMeter label positioning issues

  neoforged/FancyModLoader#284 · Filter by author UpcraftLP opened on May 22, 2025

• StartupNotificationManager does not support translations

  neoforged/FancyModLoader#283 · Filter by author UpcraftLP opened on May 22, 2025

• Version Checker accepts erroneous HTTP status codes

  neoforged/FancyModLoader#279 · Filter by author UpcraftLP opened on Apr 22, 2025

• TerminalConsoleAppender seems to only create "dumb" terminals

  neoforged/FancyModLoader#272 · Filter by author Fourmisain opened on Apr 8, 2025

• Allow ILaunchHandlerServices to decide whether to use early display.

  neoforged/FancyModLoader#252 · Filter by author heipiao233 opened on Feb 28, 2025

• Early pop-up error messages fail to show correctly, causes other applications to misbehave

  neoforged/FancyModLoader#244 · Filter by author jellysquid3 opened on Feb 13, 2025
  2

• Have system.out.print also log the class that calls it in mods for dev/prod

  enhancement
  Enhancement

  neoforged/FancyModLoader#277 · Filter by author TelepathicGrunt opened on Jan 24, 2025
  1