Issues

• Flamethrower not smelting dropped items

  mekanism/Mekanism#8650 · Filter by author SandorTares opened on Oct 30, 2026

• Cannot enrich a block of coal

  mekanism/Mekanism#8646 · Filter by author Nadekai opened on Oct 24, 2026

• Invalid fluid for tank: [RuntimeException: Invalid fluid for tank: 4608000 minecraft:water] — Client-side crash on chunk load with Evaporation Plant

  mekanism/Mekanism#8642 · Filter by author Lingye1204 opened on Oct 16, 2026
  1

• Warden spawning when using cardboard box on shrieker

  1.2126.3Fixed in dev
  mekanism/Mekanism#8637 · Filter by author ILikeTrainss opened on Oct 8, 2026

• [Veil/]: Couldn't load vanilla shader from mekanism:shaders/core/rendertype_mekasuit.fsh

  mekanism/Mekanism#8635 · Filter by author chmonyasik opened on Sep 26, 2026

• [Bug] Chunk load deadlock: BoundingBlock.getCapability triggers blocking getChunk during BlockEntityLoadEvent

  mekanism/Mekanism#8632 · Filter by author Shiho320 opened on Sep 19, 2026
  4

• Crash on player save / packet decode error when selecting fluid items in Creative Mode (1.21.1 NeoForge)

  mekanism/Mekanism#8628 · Filter by author itsagorski1 opened on Sep 12, 2026
  2

• Pigment can be (kind of) duplicated

  bugneeds reviewTo be confirmed
  mekanism/Mekanism#8619 · Filter by author gugofn opened on Aug 22, 2026

• no en_gb.json language file

  mekanism/Mekanism#8617 · Filter by author HollyEvergreen opened on Aug 15, 2026

• Newly placed Cables (only verified with Universal) are buggy unless manually replaced

  mekanism/Mekanism#8616 · Filter by author Nexian-Archonite opened on Aug 9, 2026
  1

• [1.20.1] Mekanism not compatible with latest JEI version

  mekanism/Mekanism#8612 · Filter by author Sandriell opened on Aug 2, 2026
  3

• Quantum Entangloporter loses content after a server restart

  mekanism/Mekanism#8611 · Filter by author ovco69 opened on Jul 26, 2026
  2

• tacz hand animation broken with meka suit

  mekanism/Mekanism#8609 · Filter by author RedstoneGyerek opened on Jul 24, 2026
  3

• Digital Miner configuration fields do not work when the game language is set to Korean (ko_kr)

  mekanism/Mekanism#8608 · Filter by author NullVerse opened on Jul 21, 2026

• Overflow in EnergyNetwork#absorbBuffer when cable network stores extremely large amounts of energy

  mekanism/Mekanism#8604 · Filter by author Takenokoshi opened on Jul 15, 2026

• Logistical transporter lag routing of idle items lags and crashes server

  mekanism/Mekanism#8602 · Filter by author txomon opened on Jul 9, 2026

• Poor/No authentication on most packets

  mekanism/Mekanism#8600 · Filter by author Sunderw3k opened on Jul 7, 2026
  2

• Multiblock BER overhead: every tile reports shouldRenderOffScreen and getRenderBoundingBox is uncached

  mekanism/Mekanism#8597 · Filter by author avvieC315 opened on Jul 6, 2026
  1

• (1.21.1) Resistive Heater infinitely growing negative heat glitch

  mekanism/Mekanism#8594 · Filter by author ArtpokeBr opened on Jul 1, 2026
  1

• [26.1] Client crash after placing machines, FrequencyControllerManager.java

  mekanism/Mekanism#8590 · Filter by author denny969D opened on Jun 14, 2026
  4

• Question about texture usage permission

  mekanism/Mekanism#8564 · Filter by author gustavoerlersoares-cmd opened on Apr 5, 2026

• Solar Generators cause crash

  mekanism/Mekanism#8563 · Filter by author stellanera98 opened on Apr 3, 2026
  2

• translate miss

  mekanism/Mekanism#8560 · Filter by author r8xyj74j64 opened on Mar 19, 2026

• Speed upgrades

  mekanism/Mekanism#8557 · Filter by author Squizzix12 opened on Mar 13, 2026
  3

• OOM, uncontrolled memory leak.

  mekanism/Mekanism#8554 · Filter by author ACNONE opened on Feb 27, 2026
  6