# LabyMod Discord Bug Report
**Channels:** #support, #general, #discussions
**Period:** 2026-06-10 13:58 – 2026-06-17 09:17 (UTC, ~7 days since last report)
**Messages analyzed:** 1785 new (3379 in archive) | **Incidents:** 16 active this window (+ 9 newly fixed)
**Changelogs checked:** Launcher 3.0.10, LabyMod 4 4.5.9, LabyFabric 2.1.3, LabyForge 2.0.7

---

## 🔴 Critical

### [CRIT-001] LabyForge 1.8.9 — any external mod still broken ⚠️ REGRESSED
- **Category:** Client
- **Component:** LabyForge
- **(Crash)logs:** https://paste.labymod.net/raw/jaxemiwaxisomihazede · attachments/1514042642512478348_message.txt
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515413311800217680
- **Occurrences:** 4 total (1 new since last run)
- **OS:** Windows · **MC Version:** 1.8.9
- **Affected users:** @Bennix3, @! REXO ☁, @Torsv
- **Status:** open — **fixes LabyForge 2.0.3 / 2.0.4 / 2.0.7 and LM4 4.5.9 ("more mods now load correctly") did NOT hold**

**User reports:**
> "in den release notes steht zwar drin das was mit forge mods gefixt wurde aber auch ein komplettes neu installieren vom launcher + instance führt dazu, das 1.8.9 forge mods nicht funktionieren" — @Bennix3, 2026-06-13
> "grundsätzlich [...] waveycapes, 3dskinlayers, smoothsneaking, xearos minimap [...] werden ingame angezeigt das sie drin sind, kann auch die config ändern aber ändert generell nix, komplett laby4 auch neu installiert [...] ging ebenfalls ned" — @Bennix3, 2026-06-15

**Log analysis:** mods report as installed in the UI and configs are editable, but they have no effect in-game; earlier logs show `ClassNotFoundException: net.minecraft.entity.Entity` / `NoClassDefFoundError: gnu.trove...` in 1.8.9 Forge class transformers. Christian requested the exact failing mod list on 06-15.

**Hypothesis:** Four "fixed some mods not loading" changelog entries across 2.0.2→2.0.7 have not resolved 1.8.9 — the repeated incremental patches suggest the 1.8.9 Forge class-loading/transformer path needs a deeper fix. This is the longest-running unresolved critical (open since the previous report).

### [CRIT-002] WorldCup 2026 addon freezes + crashes the game on Linux 🆕
- **Category:** Addon
- **(Crash)logs:** https://paste.labymod.net/raw/alewuquqezutedidopiy · https://paste.labymod.net/raw/qelogudogiwivatecopi
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515073320834564136
- **Occurrences:** 4 (all new)
- **OS:** Linux (CachyOS, Fedora) · **MC Version:** 26.1.2 / 4.5.8
- **Affected users:** @Niika, @EinfxchWolf, @ByteCodes_, @EinfachElias
- **Linked Ideas:** [#21026 — Game freeze and crash with WorldCup 2026 Addon [OPEN]](https://laby.net/ideas/21026)
- **Status:** open

**User reports:**
> "Spiel freezed 2 Sekunden nach dem join auf laby.net und crasht dann… (later) Liegt am WorldCup" — @Niika, 2026-06-12

**Log analysis:** WorldCup addon v1.1.3 loads, then `SLF4J(E): A service provider failed to instantiate`; game freezes ~2s after joining and hard-crashes. **Every affected log is Linux** — NULLYUKI confirmed Windows users with the addon don't reproduce. Likely the addon's native media-player (VLC/libvlc) integration on Linux. @EinfachElias also reports chat won't open after installing WorldCup (probably the same addon-init failure).

**Hypothesis:** Linux-only addon init/native crash. Bugreport #21026 filed; @ByteCodes_ is attempting a local patch. Needs a Linux repro on the dev side.

---

## 🟠 High

### [HIGH-001] Launcher fails to start silently (no window, not in task manager) 🆕
- **Category:** Launcher
- **(Crash)logs:** https://paste.labymod.net/raw/obegubivesuhetirucoq (`</3.`) · others none uploaded
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515046860577050736
- **Occurrences:** 7 total (4 new since last run)
- **OS:** Windows · **MC Version:** n/a
- **Affected users:** @cvhfvhcjx, @jaypredictable, @dj_pitgamer, @</3. (+ @The Rebirthed, @Zeesh prior)
- **Status:** open — still recurring on 3.0.9 / 3.0.10

**User reports:**
> "laby launcher doesnt start at all not in task manager or anything" — @cvhfvhcjx, 2026-06-12
> "okay i opened the labymod installer and then the launcher opened" — @jaypredictable, 2026-06-13

**Log analysis:** Same family as the previous report's Electron `globalShortcut`-before-ready race. jaypredictable's workaround — running the installer re-launches it — points to the launcher process dying silently rather than a corrupt install. 3.0.9/3.0.10 added window-reappear and re-activation crash fixes, but the cold-start "nothing in task manager" case persists across 4 new users.

**Hypothesis:** Top recurring launcher issue. Worth the install/error logs Northernside keeps requesting — capture `labymodlauncher-install.log` + `-error.log` from a fresh failure.

### [HIGH-002] Multiple instances open → memory leak → instances crash one by one 🆕
- **Category:** Client
- **(Crash)logs:** https://paste.labymod.net/raw/hiqozejelumemilikine · https://paste.labymod.net/raw/ubacosetixuzabeguyud
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515750936746655836
- **Occurrences:** 1 user, repeated over days
- **OS:** Windows (32 GB RAM) · **MC Version:** 1.21.x
- **Affected users:** @Treggalin
- **Status:** open — dev confirmed memory leak, client fix planned (no date)

**User reports:**
> "wenn ich es 3 mal offen hab sind sie nach einander weg und ich kann nicht mehr starten" — @Treggalin, 2026-06-14

**Log analysis:** With 3 instances open for hours, 2 of 3 crash one after another; the longest-lived survives, and no launcher crash-popup appears (the "main" instance stays up). 32 GB RAM rules out under-allocation (one early log misreported low RAM). Northernside: *"Scheint ein Memory Leak zu sein. Liegt teilweise an Mojang"* — client devs to fix, scheduled but undated.

**Hypothesis:** Memory leak in the multi-instance path, partly Mojang-side. The `bobby` mod (loads more chunks than the server allows) was floated as an aggravator.

### [HIGH-003] Cosmetic render crash — ConcurrentModificationException (many cosmetics at once) 🆕
- **Category:** Client
- **Component:** Rendering
- **(Crash)logs:** https://paste.labymod.net/raw/ugusilayixenifupakak · attachments/1514705669926682727_message.txt
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1514682460473135134
- **Occurrences:** 2
- **OS:** Windows · **MC Version:** 1.21.x
- **Affected users:** @zuna, @𝓜𝓪𝓽𝓽𝓲𝓶𝓾𝓼𝓼
- **Status:** open — **fix exists, awaiting client rollout**

**Log analysis:**
```
java.util.ConcurrentModificationException
  at CosmeticTextureService.lambda$registerTexture$1 (CosmeticTextureService.java:338)
  at TextureUploadThrottler.processFrame (TextureUploadThrottler.java:34)
  at CosmeticLifecycleManager.processUploads → ShopItemLayer.render
```
Triggered when many cosmetics render/upload at once: @zuna via LabyWorld "visible ball" (show all players), @𝓜𝓪𝓽𝓽𝓲𝓶𝓾𝓼𝓼 via the voting screen. The same scenario also drops half the VoiceChat players.

**Hypothesis:** The texture-upload throttler iterates a collection that's concurrently modified. Northernside: *"hab ich eigentlich schon gefixxed, liegt aber nicht an mir den Fix auszurollen"* — fix done, not yet released. Verify once the client update ships.

---

## 🟡 Medium

### [MED-001] Cosmetics render as plain white layers with shaders (Iris) 🆕
- **Category:** Client · **Component:** Rendering
- **(Crash)logs:** none provided (visual; screenshots in thread)
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1514294485687996428
- **Occurrences:** 4 · **OS:** Windows · **MC Version:** 26.1.2 / 1.21.x
- **Affected users:** @Cxrni, @byjonas, @benny, @aklokin
- **Linked Ideas:** [#19863 — Cosmetics don't work with shaders [OPEN]](https://laby.net/ideas/19863) · [#20771 — Shader bug [OPEN]](https://laby.net/ideas/20771)
- **Status:** open

> "Wenn ich in der 26.1.2 einen Shader nutze, dann sehen alle Labymod Cosmetics so aus [weiß]. Hab 5 verschiedene ausprobiert und das Problem bleibt bestehen" — @Cxrni, 2026-06-10

With Iris/Sodium shaders enabled, cosmetics lose their textures and render solid white; @byjonas reproduced. @benny reports a colored-lighting artifact with Solas. Two open ideas predate this window but it's now hitting many 26.1.2 users. In-chat workaround: Complementary/Photon allegedly render cosmetics better, but the core shader-pipeline incompatibility is unresolved.

### [MED-002] Mobile Laby app login broken after website update 🆕
- **Category:** Other (App)
- **(Crash)logs:** none provided
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515400472436146277
- **Occurrences:** 2 · **OS:** Android/iOS app
- **Affected users:** @𝓙𝓮𝓭𝓮𝓷𝓽𝓪𝓰3, @Lukas4447🐢
- **Status:** open — staff-confirmed known issue

> "When I try to log in, I am redirected to the website and can log in there successfully. However, I am not logged into the app itself, only in the browser. Because of this, I cannot claim the mobile cosmetic." — @𝓙𝓮𝓭𝓮𝓷𝓽𝓪𝓰3, 2026-06-13

NULLYUKI: *"known issue that due to the website update, the app doesn't properly work currently."* The web→app auth handoff broke during the website rewrite; also blocks claiming the mobile-exclusive cosmetic and in-app LabyCoin purchases.

### [MED-003] One unresolved Fabric mod dependency silently disables ALL mods 🆕
- **Category:** Client · **Component:** LabyFabric
- **(Crash)logs:** https://paste.labymod.net/raw/uvocohirikofuqamixes · https://paste.labymod.net/raw/ukidatukorayuzozaqid · https://paste.labymod.net/raw/bazukubocuzeyuweyino
- **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1514615080317358213
- **Occurrences:** 3 (distinct mods) · **OS:** Windows · **MC Version:** 1.20.6 / 1.21.x
- **Affected users:** @T0bs3n_, @Ryxonn, @wolfi
- **Status:** open (actionable UX)

**Log analysis:** `net.fabricmc.loader.impl.discovery.ModResolutionException` — a single missing dependency (RoughlyEnoughItems→architectury) or version conflict (Iris↔Distant Horizons) aborts the **entire** Fabric mod load, so none of the user's mods work — not just the offending one. Distinct surface mods this window: architectury, e4mc, Iris/Distant Horizons, cardinal-components/Travelersbackpack.

**Hypothesis:** Each cause is user-side, but the recurring, actionable pattern is shared: a single resolution failure disables the whole mod set with no clear in-launcher indication, so users report "all my mods stopped working" and can't find the culprit. Surfacing the offending mod/dependency in the launcher UI would eliminate a large class of support requests.

---

## 🟢 Low

### [LOW-001] LabyMod badge/indicator missing for one's OWN account 🆕
- **Category:** Client · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515724460072763474
- **Occurrences:** 4 (carried over from previous report, still active) · **MC Version:** 1.8.9 / 1.21.11 / 26.1 snapshot
- **Affected users:** @Geldi, @wxxe, @MisterMakeyy, @Balls
- **Status:** needs-info — settings confirmed on, reinstalls don't help; staff suspect LabyConnect/server-side

> "on my own account, the LabyMod icon is neither displayed in the TAB list nor above my character. Other players are unable to see it for me as well." — @MisterMakeyy, 2026-06-14

Only the reporting user's own indicator is affected; others see each other fine → check the LabyConnect self-presence broadcast.

### [LOW-002] Launcher 'start fullscreen' disables in-game fullscreen; 1.8.9 custom resolution gone 🆕
- **Category:** Launcher · **Message Links:** https://discord.com/channels/260471731809026048/260471731809026048/1516130132706983970
- **Occurrences:** 3 · **OS:** Windows · **MC Version:** 1.8.9 / 1.21.x
- **Affected users:** @Kubii, @Kaktus, @Treggalin
- **Linked Ideas:** [#20999 — Starting window resolution doesnt apply [OPEN]](https://laby.net/ideas/20999)
- **Status:** open — Northernside confirmed launcher bug, fix queued

Same window-geometry code path as the (fixed) borderless-fullscreen NPE. Northernside: *"its not supposed to turn it off in the game"* — fix released "later/tomorrow." @Kaktus's 1.8.9 fullscreen pixelation is the lost custom-resolution control in the same area.

### [LOW-003] In-game chat shows player heads but no names (one specific server) 🆕
- **Category:** Client · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515842643693797456
- **Occurrences:** 1 · **Affected users:** @𝓗𝔂𝓹𝓮𝓻𝓳𝓪𝔂 · **Status:** needs-info

> "My ingame chat doesnt show names only heads. Removing the heads feature still doesnt show names. […] only that server too, other multiplayers or single player work" — @𝓗𝔂𝓹𝓮𝓻𝓳𝓪𝔂

Server-specific; other LabyMod users on the same server unaffected. Likely a server-plugin × chat/time-addon interaction. Needs a log + server name.

### [LOW-004] laby.net dashboard rewards page renders blank 🆕
- **Category:** Other (web) · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515716755048108102
- **Occurrences:** 3 · **Affected users:** @Tharson_, @Leon, @Jürgen · **Status:** workaround (reload sometimes helps)

Rewards section loads blank white/black; intermittent across several days (partly overlapping the 06-15 site instability). Compare Launcher 3.0.9's analogous "news section disappearing when feed briefly empty" fix.

### [LOW-005] EntityRenderDisabler 'items' toggle no longer hides dropped items 🆕
- **Category:** Client · **Component:** Mod-Compat · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1514806680452333809
- **Occurrences:** 1 · **Affected users:** @Bobby ( Skiyl ) · **Status:** open

Unchecking "items" used to hide ground items; with the newest version the toggle has no effect even after reinstall + restart — echoes the broader addon enable/disable-not-honored pattern.

### [LOW-006] WorldCup addon: missing broadcasters for many countries + ARD no-sound 🆕
- **Category:** Addon · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1515081628081459221
- **Occurrences:** 4+ · **Affected users:** @Moha, @GoldenMinestar, @Treggalin, @shiro · **Status:** open (mostly coverage requests)

Mostly a coverage gap: the addon ships a small, mostly-German broadcaster set, so Austria (ORF), Brazil (CazéTV/YouTube), Sweden, etc. get "no channel found"; the team adds streams per request and requires free/legal/public streams playable in VLC (DRM streams like ORF/SRF can't be added). The one genuine bug in this cluster is **ARD no-sound** (video plays, audio silent — @GoldenMinestar, output-device dependent).

### [LOW-007] LabyCoins removed from cart checkout / gift codes no longer apply 🆕
- **Category:** Other (web) · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1514746559026899979
- **Occurrences:** 3 · **Affected users:** @أَسْتَغْفِرُ اللَّهَ, @Alana, @Lukas4447🐢 · **Status:** open — likely intended

On the new website, LabyCoins isn't offered at cart/checkout (only on the product page) and gift/promo codes no longer apply to LabyCoin purchases. RappyTV/Fabio indicate this is likely intended post-rewrite — worth a one-line confirmation from the web team since it's recurring confusion with no in-UI explanation.

### [LOW-008] Blindness effect not rendering on 1.21.11 (still open)
- **Category:** Client · **Component:** Rendering · **Message Links:** https://discord.com/channels/260471731809026048/260478719695519746/1513226165832122368
- **Occurrences:** 1 (bumped twice this window) · **Affected users:** @Phoenix · **Status:** open — no staff response across two reports

Carried over from the previous report; @Phoenix bumped it twice (06-10, 06-11) with still no response. Worth a triage pass.

---

## ✅ Apparently Fixed

Issues from this window (or carried over) that releases/staff appear to have resolved. Verify before closing.

- **Launcher loses/resets instances (instances.json corrupted on NTFS)** (@Kaktus, @asdasf1z): Northernside reproduced live, diagnosed as Windows/NTFS-only; data never actually deleted. Fixed in **Launcher 3.0.9** (auto-recovery for corrupt instance list, "notably on NTFS") + **3.0.10** ("Recover Instances from Disk"). Verify recovery restores the mod list.
- **OptiFine addon + Fabric → startup crash** (@Geldi): fixed in **LabyFabric 2.1.2** ("Fixed a crash on startup when OptiFine is installed") + **LabyForge 2.0.3** (auto-skips OptiFine in the mods folder). Christian confirmed; log [sekibikaqawewukofavu](https://paste.labymod.net/raw/sekibikaqawewukofavu).
- **Launcher install/start error dialog** (@asdasf1z): **confirmed fixed** in **Launcher 3.0.10** ("ja jetzt geht et", 06-13).
- **Launcher silently reinstalls uninstalled mods** (prev. report HIGH-002): fixed in **Launcher 3.0.10** ("Fixed a race when quickly enabling/disabling mods that could leave a duplicate or stale disabled copy; installed mods now stay in a stable order").
- **LabyFabric remapper aborts on existing remapped jar** (prev. report HIGH-001 / @whoami, @UnimogTHW): **confirmed** — Christian's 06-10 fix ("eure Probleme sollten jetzt behoben sein"); users replied "Klappt, vielen Dank".
- **Various LabyFabric mod-loading crashes** (@simonpro10 cardinal-components, @Clayzer Iceberg, others): Christian: "Ist im nächsten Release gefixt" / "Sollte mit der neusten LabyFabric Version gefixt sein" — **LabyFabric 2.1.0–2.1.3** (mod setup timing, offline handling, "crash that could disable LabyFabric"). Confirmed by simonpro10.
- **AUR `labymodlauncher-bin`** (prev. report LOW-001 / @Kawwabi): **confirmed** — "does work with 3.0.8 now" (06-10).
- **MC 26.2 not launchable on production** (@The Rebirthed): LM4 **4.5.9** "Added support for Minecraft 26.2"; snapshot channel worked immediately (Fabio confirmed).
- **Own cosmetics hidden by the cosmetics limit** (@𝓜𝓪𝓽𝓽𝓲𝓶𝓾𝓼𝓼): was a user cosmetic-limit setting (resolved in-thread), and LM4 **4.5.9** now exempts your own cosmetics from the limit entirely.

---

*Excluded as external / not-a-bug / transient:*
- **laby.net site outage on 06-15 (~16:00–17:00 UTC):** login/passkey failures, temporary cosmetic wipe, laby.net server unjoinable — staff "working on it", resolved same day (transient).
- **Minecraft "Sending chat messages is not allowed" (@The Rebirthed, @VoidMonarch):** Mojang's account-privacy/chat rollout (Microsoft family Xbox privacy setting), not a LabyMod bug — fixed via the player's Microsoft account settings.
- **VPN/geo region blocks** (Russia, country joins) — ISP/government-side.
- **LabyMod 3 unsupported** (403 on install, OptiFine on LM3, cracked accounts) — EOL/unsupported.
- Cosmetic pricing/LabyCoin-discount complaints, streak-loss appeals, translator applications, soccer-ball hunting, moderation/VC-mute questions.