Startup Issue with Minecraft - Im having problems with using a custom startup setting

System Information

Field Value
Operating System Linux - Debian GNU/Linux 13 on x86_64
Product AMP ‘Phobos’ v2.6.5.2 (Mainline)
Virtualization Docker
Application Minecraft
Module MinecraftModule
Running in Container Yes
Current State Installing

Problem Description

Issue

Custom startup arguments
For use only with the ‘Custom’ server type. Add {JarFile} to insert the selected jar file, and {Memory} for the selected memory limit

When specifying custom installation type i see this window. I am not sure how to specify the config parameters. I have uplaoded custom server jar to the file manager as server.jar and when im trying to run it the server stops in >5 seconds. what would be the correct way to set up a custom server installation?

Reproduction Steps

  • set up the server installation to custom
  • tried setting the custom config parameters
  • added server.jar (Custom jar) as the preferred server bootup jar file