Version Info

• Minecraft: 1.21.1
• Fusion: Fusion 1.2.0 for NeoForge 1.21
  Other Mods
• Iron Jetpacks version 1.21.1-8.0.6
• Cucumber Library 1.21.1-8.0.8

NeoForge 21.1.93

No

Steps to Reproduce
Create new instance of NeoForge 1.21.1 on Curse Forge launcher, install mads Fusion 1.2.0 for NeoForge 1.21, Iron Jetpacks version 1.21.1-8.0.6, and Cucumber Library 1.21.1-8.0.8, and try starting the game...

Game start lunching and when near done it just freezes and no longer loads... Have to force close the window to exit, see screenshot below at where is freezes. No crash report is created as it just freezes at a certain point, but i attached latest log, and debug file.

Issue seems to be directly tied to Iron Jetpack and Fusion as i can load the game with just Fusion and Cucumber installed, but that might also be because nothing is calling/using cucumber.

Problem did not start until i updated to the latest version of Fusion, if i revert to the previous version "Fusion 1.1.1a for NeoForge 1.21" it loads just fine.

Crash report (~/logs/latest.log)
debug.log
latest.log

This should be fixed now in Fusion 1.2.1.
Could you verify the issue no longer occurs?

sure i'll test it now

looks good, issue seems to be be fixed. Thank you for the quick turnaround.

Nice, thank you for reporting the issue and testing it!