Minecraft 1.19.4 has been released!Famcraft is updated to the latest version!Please make sure you connect with 1.19.3 or 1.19.4.
Are you doing this in the nether? If so test it out in the over world just for the purpose of testing
Smelting Iron from Weaponsmith pays like it should for me. I don't have Netherworker so I can't test that...