When I remove either Hydrogen (0.3.0) or FerriteCore (3.0.0), the game launches fine. Here is a crash report with just Hydrogen and FerriteCore on Fabric 1.17: https://gist.github.com/DragonEggBedrockBreaking/576caba331baa1ac02da1220f4da05a9

I should have expected this… Disable modelResourceLocations for now, the fix will probably be to do exactly that automatically. Hydrogen implemented "something" related to ModelResourceLocations/ModelIdentifiers, I expect it's roughly the same as what I have in FC.

Fixed in 9347388