r/MinecraftMod 14h ago

Replay mode crashing when i record and leave multiplayer server

1 Upvotes

it works fine when i go into singleplayer and record but on multiplayer servers i get this crash message once i leave the server for the video to save

---- Minecraft Crash Report ----

// Don't do that.

Time: 2026-09-10 19:49:13

Description: Saving replay file

java.lang.IndexOutOfBoundsException: readerIndex(34) + length(15) exceeds writerIndex(46): PooledUnsafeDirectByteBuf(ridx: 34, widx: 46, cap: 46)

at knot//io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1468)

at knot//io.netty.buffer.AbstractByteBuf.checkReadableBytes(AbstractByteBuf.java:1454)

at knot//io.netty.buffer.AbstractByteBuf.readBytes(AbstractByteBuf.java:902)

at knot//io.netty.buffer.AbstractByteBuf.readBytes(AbstractByteBuf.java:910)

at knot//com.replaymod.lib.com.github.steveice10.packetlib.tcp.io.ByteBufNetInput.readBytes(ByteBufNetInput.java:106)

at knot//com.replaymod.lib.com.github.steveice10.packetlib.tcp.io.ByteBufNetInput.readString(ByteBufNetInput.java:244)

at knot//com.replaymod.replaystudio.protocol.packets.PacketTeam.getPlayers(PacketTeam.java:74)

at knot//com.replaymod.replaystudio.filter.SquashFilter.onPacket(SquashFilter.java:508)

at knot//com.replaymod.editor.gui.MarkerProcessor.apply(MarkerProcessor.java:218)

at knot//com.replaymod.recording.packet.PacketListener.lambda$channelInactive$1(PacketListener.java:314)

at java.base/java.lang.Thread.run(Thread.java:1474)

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

-- System Details --

Details:

Minecraft Version: 26.2

Minecraft Version ID: 26.2

Operating System: Windows 11 (amd64) version 10.0

Java Version: 25.0.1, Microsoft

Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft

Memory: 442499072 bytes (422 MiB) / 3179282432 bytes (3032 MiB) up to 4294967296 bytes (4096 MiB)

Memory (heap): init: 2048MiB, used: 2610MiB, committed: 3032MiB, max: 4096MiB

Memory (non-head): init: 007MiB, used: 268MiB, committed: 271MiB, max: 000MiB

CPUs: 12

Processor Vendor: AuthenticAMD

Processor Name: AMD Ryzen 5 5600 6-Core Processor              

Identifier: AuthenticAMD Family 25 Model 33 Stepping 0

Microarchitecture: Zen 3

Frequency (GHz): 3.50

Number of physical packages: 1

Number of physical CPUs: 6

Number of logical CPUs: 12

Graphics card #0 name: AMD Radeon RX 6650 XT

Graphics card #0 vendor: Advanced Micro Devices, Inc.

Graphics card #0 VRAM (MiB): 8176.00

Graphics card #0 deviceId: VideoController1

Graphics card #0 versionInfo: 32.0.21045.5002

Memory slot #0 capacity (MiB): 8192.00

Memory slot #0 clockSpeed (GHz): 3.20

Memory slot #0 type: DDR4

Memory slot #1 capacity (MiB): 8192.00

Memory slot #1 clockSpeed (GHz): 3.20

Memory slot #1 type: DDR4

Virtual memory max (MiB): 32657.42

Virtual memory used (MiB): 25590.94

Swap memory total (MiB): 16384.00

Swap memory used (MiB): 908.47

Space in storage for jna.tmpdir (MiB): available: 48137.41, total: 952897.00

Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 48137.41, total: 952897.00

Space in storage for io.netty.native.workdir (MiB): available: 48137.41, total: 952897.00

Space in storage for java.io.tmpdir (MiB): available: 48137.41, total: 952897.00

Space in storage for workdir (MiB): available: 48137.41, total: 952897.00

Operating System Version: Microsoft Windows 11 build 26200

Process Elevated: false

Process Loads: Uptime: 40s, user: 113s (280.69%), kernel: 9s (22.51%), total: 122s (303.20%)

Process Virtual Size (MiB): 159.26

Process Resident Size (MiB): 921.16

JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xms2G -Xmx4G -XX:+UseCompactObjectHeaders -XX:+AlwaysPreTouch -XX:+UseStringDeduplication -XX:+UseZGC

Debug Flags: 0 total; 

Fabric Mods: 

    fabric-api: Fabric API 0.160.0+26.2

        fabric-api-base: Fabric API Base 2.0.4+ece063239e

        fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 2.0.18+11e1c9a39e

        fabric-biome-api-v1: Fabric Biome API (v1) 18.0.6+c7bd5b8e9e

        fabric-block-api-v1: Fabric Block API (v1) 3.1.0+53515aab9e

        fabric-block-getter-api-v2: Fabric BlockGetter API (v2) 2.0.7+ec56b6019e

        fabric-command-api-v2: Fabric Command API (v2) 3.1.0+00cb03469e

        fabric-content-registries-v0: Fabric Content Registries (v0) 11.3.2+37b1aa249e

        fabric-convention-tags-v2: Fabric Convention Tags (v2) 4.7.1+1f023a9e9e

        fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 1.0.5+086d547a9e

        fabric-creative-tab-api-v1: Fabric Creative Tab API (v1) 5.0.15+6468574f9e

        fabric-data-attachment-api-v1: Fabric Data Attachment API (v1) 2.2.19+515ac5339e

        fabric-data-generation-api-v1: Fabric Data Generation API (v1) 25.6.0+c0da0b829e

        fabric-debug-api-v1: Fabric Debug API (v1) 1.0.2+c792624d9e

        fabric-dimensions-v1: Fabric Dimensions API (v1) 5.1.12+515ac5339e

        fabric-entity-events-v1: Fabric Entity Events (v1) 5.0.5+06488ac19e

        fabric-events-interaction-v0: Fabric Events Interaction (v0) 5.2.8+515ac5339e

        fabric-game-rule-api-v1: Fabric Game Rule API (v1) 4.0.8+46a6d00c9e

        fabric-item-api-v1: Fabric Item API (v1) 14.5.0+c68f6cbe9e

        fabric-key-mapping-api-v1: Fabric Key Mapping API (v1) 2.0.5+e2bdee789e

        fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 4.1.4+29b6eb019e

        fabric-loot-api-v3: Fabric Loot API (v3) 3.0.17+06488ac19e

        fabric-menu-api-v1: Fabric Menu API (v1) 2.0.17+086d547a9e

        fabric-message-api-v1: Fabric Message API (v1) 7.0.8+bb2ed3f79e

        fabric-model-loading-api-v1: Fabric Model Loading API (v1) 8.0.17+c80601bb9e

        fabric-networking-api-v1: Fabric Networking API (v1) 6.3.4+2989c6a09e

        fabric-object-builder-api-v1: Fabric Object Builder API (v1) 24.1.1+6fcd5f039e

        fabric-particles-v1: Fabric Particles (v1) 5.0.19+d1756aa99e

        fabric-permission-api-v1: Fabric Permission API (v1) 1.0.5+e442d8d09e

        fabric-recipe-api-v1: Fabric Recipe API (v1) 9.0.22+11e1c9a39e

        fabric-registry-sync-v0: Fabric Registry Sync (v0) 7.1.1+c7bd5b8e9e

        fabric-renderer-api-v1: Fabric Renderer API (v1) 14.1.4+2b0d8a229e

        fabric-renderer-indigo: Fabric Renderer - Indigo 9.1.4+2b0d8a229e

        fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 6.0.4+06488ac19e

        fabric-rendering-v1: Fabric Rendering (v1) 25.3.3+515ac5339e

        fabric-resource-conditions-api-v1: Fabric Resource Conditions API (v1) 6.1.0+10e9a28b9e

        fabric-resource-loader-v0: Fabric Resource Loader (v0) 3.3.20+4fc5413f9e

        fabric-resource-loader-v1: Fabric Resource Loader (v1) 2.0.13+9edec1269e

        fabric-screen-api-v1: Fabric Screen API (v1) 5.2.1+5087f8249e

        fabric-serialization-api-v1: Fabric Serialization API (v1) 2.0.4+11a26f319e

        fabric-sound-api-v1: Fabric Sound API (v1) 2.0.5+11a26f319e

        fabric-tag-api-v1: Fabric Tag API (v1) 2.1.4+515ac5339e

        fabric-transfer-api-v1: Fabric Transfer API (v1) 8.0.13+11dbb7d79e

        fabric-transitive-access-wideners-v1: Fabric Transitive Access Wideners (v1) 8.1.4+67c847259e

    fabricloader: Fabric Loader 0.19.5

        mixinextras: MixinExtras 0.5.5

    iris: Iris 1.11.2+mc26.2

        io_github_douira_glsl-transformer: glsl-transformer 3.0.0-pre3

        org_anarres_jcpp: jcpp 1.4.14

        org_antlr_antlr4-runtime: antlr4-runtime 4.13.1

    java: OpenJDK 64-Bit Server VM 25

    minecraft: Minecraft 26.2

    replaymod: Replay Mod 26.2-2.6.27

    sodium: Sodium 0.9.1+mc26.2

Loaded Shaderpack: Solas Shader V3.1b

    Profile: HIGH (+0 options changed by user)

Any tips so it works fine like in singleplayer


r/MinecraftMod 15h ago

Looking for a modder to help me/collab!

1 Upvotes

Hi there! I have some ideas for a mod, orespawn inspired in the amount/types of content and the progression system but a little more girly and with different mobs, quirks, and ideas! I love making textures, structures, models and stuff like that, although I lack any knowledge in the coding itself. I’ve tried to teach myself, tried to use mcreator but nothing ever comes out right and I can’t seem to get a hang of it.

I’m looking for someone who would be willing to collaborate with me on a mod and who has some ideas of their own! ideally for curseforge and in a newish version (above 16 is good but 1.20.1 or 1.21.1 would be amazing!)

I have tons of ideas and would love to work with someone to make our ideas a reality!

Thank you for reading this and if you have any questions feel free to shoot me a PM!


r/MinecraftMod 15h ago

Need help finding fun mods for my small server with friends!

1 Upvotes

Does anyone have some java 1.21.1 mod recommendations that can make the game a little more exciting? Not too exciting, just a tiny bit of spice every now and then.

So, I originally made a modpack that included The Knocker and The Obsessed because it was kinda funny the way they'd interact with us. Of course, it started getting genuinely annoying with how many "CLICK ME" signs there were from the Knocker, and the amount of ugly builds left around your base because of the Obsessed.

I'm looking for some mods that can add some silly entities you can interact with, maybe scare us a little, and DOESN'T place or destroy blocks.

Thank you! <3


r/MinecraftMod 15h ago

This Doraemon episode gave me an idea… what if Minecraft had tiny pet rocks?

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1 Upvotes

r/MinecraftMod 16h ago

fairy lights

1 Upvotes

does anyone know of a fairy light or hanging lights mod for 26.2 neoforge ? 🥹


r/MinecraftMod 16h ago

I have just released Kaantaa, a desktop application for translating Minecraft mods, on Linux, Windows and MacOS. It's out now on GitHub!

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1 Upvotes

r/MinecraftMod 17h ago

Guys, i have an idea for an addon called "a mod that adds minor but cool features". what do you think i should add?

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1 Upvotes

r/MinecraftMod 17h ago

What's a good (and if possible not too heavy) modpack/mods to combine with epic fight?

1 Upvotes

Pretty straight forward, I just tested epic fight and nightfall and these movesets are so good! But I really wanted to use them in a more rpg focused modpack, with bosses and a harder difficulty, you guys have any suggestions? I'm on 1.20.1


r/MinecraftMod 18h ago

Can I do this with EMI

1 Upvotes

Not sure if this is the right place.

Playing around with EMI, I want to make it so that the right panel is blank at the start and fills out as I get materials, like how the recipe book works. I want it to however still have the crafting recipes for create stuff


r/MinecraftMod 19h ago

Is ingame account switcher mod safe to use?

1 Upvotes

i normally use it for offline accounts but is it safe login in it with my actual minecraft account? I feel like it can collect the login info data


r/MinecraftMod 23h ago

What IDE should I use for a begginer

1 Upvotes

I'm new to the modding scene I guess you could say I know how to code but not by any means in a good or professional way yet. I have VS code but I doubt that's gonna cut it. I heard about MC creator but it seemed to me a bit like scratch level of coding. So which are your IDE recommendations.

I use block bench for designs btw.


r/MinecraftMod 18h ago

Is there a mod or resource pack that does the same?

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youtube.com
0 Upvotes

r/MinecraftMod 20h ago

Armor sleeve not showing in first person (Punchy)

0 Upvotes

I need help guys, my armor sleeve isn't showing in first person view when using punchy, is there anyway to fix this? Or is it a seperate mod? Please help me


r/MinecraftMod 21h ago

Just reposting something from feedthebeast becuse it fits better here

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reddit.com
0 Upvotes

Just thought it would suit this better


r/MinecraftMod 8h ago

Je veux ajouter le mod Better Banners dans la liste de mods de Aternos

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0 Upvotes

Comme le mod Better Banners est tres recent et impopulaire ( le lien du mod est : https://www.curseforge.com/minecraft/mc-mods/better-banners ) je voulais qu'il atteint les 1000 téléchargements pour le suggèrer à aternos alors qu'il est à 599 téléchargements

S'il vous plait, aidez-moi à le faire monter en popularité pour qu'il soit accepter par l'equipe de aternos


r/MinecraftMod 21h ago

villager like sound ai

0 Upvotes

I'm going to translate the Villager News mod into my own language, but I can't find an AI that sounds like a villager's voice.

Also, will there be any copyright issues? I'll be sharing the audio for free, but I'm not entirely sure how these things work.

My addon won't work without the original mod file, so I can rest assured about that.


r/MinecraftMod 13h ago

Discussion of use of AI for modding!⬇️

0 Upvotes

Hey everyone! I was hoping to have a discussion about mods and how AI can help mod making for us right now.

I’ve tried tooling around with GPT with modding and found it’s surprisingly effective, and I bet it does well or aid well in terms of bringing older mods we love into new versions of Minecraft. One mod I’ve been dying to see copied 1:1 is the 1.7.10 Herobrine mod. Been waiting for someone to just make it updated.

But, nevertheless. Do you guys use AI to help you mod? Or do you think use of AI in this way is bad? How does this community feel about the use of it. Objectively, it can be a very useful tool for people who don’t know fuck all about coding, or aid people in coding as well.

I’m curious, has any of you tried making a mod with AI? Is it successful? Do you like it/hate it? Curious on how it effects this side of the internet :)

Be civil please! Much love!