Minecraft 1.18.1 with Fabric Loader 0.12.12
When I create custom tier 4 forges (one using a vanilla purpur block as the controller material, and one using a modded material block) the controllers are created, are in game, and show up in REI and are craftable, but they display no textures, and are named after the controller block material (prefixed by additional stuff).
I am using iris, sodium, lithium in the initial try, THEN took out all mods except cloth api, cloth config, fabric api, owo-lib, and alloy.
Same issue with naming and no texture.

from the log:
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: alloy_forgery:blockstates/purpur_block_forge_controller.json: java.io.FileNotFoundException: alloy_forgery:blockstates/purpur_block_forge_controller.json
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=north,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=south,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=north,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=east,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=east,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=south,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=west,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/purpur_block_forge_controller.json' missing model for variant: 'alloy_forgery:purpur_block_forge_controller#facing=west,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: alloy_forgery:blockstates/endonium_block_forge_controller.json: java.io.FileNotFoundException: alloy_forgery:blockstates/endonium_block_forge_controller.json
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=west,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=east,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=north,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=south,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=west,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=east,lit=false'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=south,lit=true'
[02:48:12] [Worker-Main-12/WARN]: Exception loading blockstate definition: 'alloy_forgery:blockstates/endonium_block_forge_controller.json' missing model for variant: 'alloy_forgery:endonium_block_forge_controller#facing=north,lit=false'

endonium_forge.json.txt
endonium_forge_part_deux.json.txt

This is expected behaviour. When you create custom forges you also have to provide your own textures and language. You can do this through a resourcepack

This is expected behaviour. When you create custom forges you also have to provide your own textures and language. You can do this through a resourcepack

Apologies! (I thought it might just slap the furnace outline over whatever was assigned controller and use that block)
Thank you again for a great mod!