MC - FTB Direwolf20 1.20 - Does not start

OS Name/Version: Ubuntu Server 22.04 LTS

Product Name/Version: v2.4.6.10, built 06/12/2023 17:17

Problem Description:
Attempted to start a Feed The Beast Direwolf 20 server that uses Minecraft version 1.20. I select Feed The Beast (new source), select the modpack and click Download/Update. It downloads some files and when its finished, I click Start, however it just seems to attempt to download the files again and again.

If I click on “Scan For New Jars” then nothing shows up except the vanilla Minecraft server Jar.

Steps to reproduce:

  • Create a new Minecraft Instance
  • Head over to Server Settings
  • Select Feed The Beast (New Source)
  • Select “FTB Presents Direwolf20 1.20 (v1.10.0)”
  • Click “Download / Update”
  • Attempt to start the server and observe the Console

Actions taken to resolve so far:
None.

After installing the pack you need to switch the Server Type over to NeoForge, then set the NeoForge Version to what the pack needs.