Context

Game crashes on startup in my custom modpack. Disabling this mod and Apotheotic Creation mod allows game to launch successfully.

Crash Report

https://gist.github.com/KCtops100/1d067ac230e33df73199efbcb107d248

🚨 Steam 'n' Rails DOES NOT work with update 6 yet. 🚨

We are aware of Update 6 being released for 1.20.1 and 1.21.1. Numismatics and Steam 'n' Rails are in the process of being ported. There is no estimate of when the port will be out.