Version Info

• Minecraft, 1.21.4
• Fusion, 1.2.10

What mod loader are you using?: NeoForge

Are you using OptiFine: No

Steps to Reproduce
Install both Easy Magic 21.4.1 and Fusion 1.2.10, then try to enable any Fusion-based resource pack. The game won't crash, but the resources also won't load.
I don't really know which mod to blame between these two, so I'm creating two separate issues.

Crash report (~/logs/latest.log)

The crash should be fixed now in Fusion version 1.2.11.
Thank you for reporting the issue!