AMP FTB Modpacks with 6 digit IDs not loading

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OS Name/Version: Ubuntu

Product Name/Version: v2.6.0.12, built 12/02/2025 15:26

Problem Description:

The FTB list only includes modpack server versions with 5 digit IDs - For instance, Direwolf20 1.21 installs Server version 1.4.1 (modpack ID 12599) instead of server version 1.9.0 (modpack ID 100027) - it seems to either see the 6 digit ID as a lower version or isn’t parsing it from the list.

Steps to reproduce:

  • Select FTB pack from Minecraft Server Settings latest version shows as 5 digit modpack ID

Actions taken to resolve so far: not sure that I can resolve it without an update

2 Likes

I would like to see a solution to this also, as the new OceanBlock 2 has a 6 digit ID

FTB has changed their download API, preventing AMP from pulling down resources properly. You’ll want to grab the server installer from their site, run it on your PC, and then upload the files to AMP.

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