Startup Issue with Minecraft - Scan for new JARs does nothing

System Information

Field Value
Operating System Linux - Debian GNU/Linux 12 on x86_64
Product AMP ‘Phobos’ v2.6.2.2 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Failed

Problem Description

Issue

Scan for new JARs does not do anything and never populates the list for me to select the correct JAR file.

Reproduction Steps

  • Select FTB Presents DW20 1.21.1
  • Update Server to install modpack
  • Click Scan for New JARs

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