Startup Issue with Minecraft - FTB Ultimate Reloaded

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Callisto’ v2.5.0.12 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Failed

Problem Description

Issue

Tried to open a server with FTB Ultimate Reloaded, it would not load the server.

Reproduction Steps

  • Went to config, and setup for FTB ultimate reloaded
  • Changed both the FTB setting and the JAR
  • Started world, crashed.

You’ll need to change the server type to whatever mod loader the pack uses, then set the mod loader version.
And make sure you’re using the right Java version for the pack

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