Unsafe World Random Access Detector Mod (1.21.8, 1.20.1) is a mod that detects unsafe off-thread world random access, helping to find causes of “Accessing LegacyRandomSource from multiple threads” crash. This is useful for finding the cause of mysterious crashes with Accessing LegacyRandomSource from multiple threads. This is not a fix for the issue, but it will help you find the cause of the issue. Note: If you are already using C2ME (Concurrent Chunk Management Engine Mod), this mod is not needed (but won’t crash if used together anyway).

Screenshots:

Requires:

Minecraft Forge or Fabric API

How to install:

Click the following link to view details: How to Install Mods for Minecraft Java Edition on PC: A Beginner Guide

Unsafe World Random Access Detector Mod (1.21.8, 1.20.1) Download Links

For All Versions from Minecraft 1.19 to Minecraft 1.20.4, 1.20.2, 1.20.1

Forge version: Download from Server 1Download from Server 2

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.20.5

Forge version: Download from Server 1Download from Server 2

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.20.6

Forge version: Download from Server 1Download from Server 2

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.21.1, 1.21

Forge version: Download from Server 1Download from Server 2

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.21.4, 1.21.3

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.21.5

Fabric version: Download from Server 1Download from Server 2

For Minecraft 1.21.8, 1.21.7, 1.21.6

Fabric version: Download from Server 1Download from Server 2

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