Description of the issue:

Immersive Engineering insists on keeping its compat recipes for other mods; for example, you're unable to remove some https://github.com/SlimeKnights/TinkersConstruct alloying recipes (Aluminium Brass and Manyullyn) from the IE Arc Furnace, and molten IE Constantan from the ticon Smeltery

Versions & Modlist

ie: 0.12-88
ct: 4.1.14
mt: 4.0.15
forge: 2807

Brief investigation shows that CT scripts run during the Register<IRecipe> (aka registerRecipes()) event, which is fired immediately before the FMLInitializationEvent (aka onInit()). The IECompat module for TConstruct adds this arc furnace recipe during onInit().

I've got a fix for this stuff in the pipeline, but I will point out that the alloying recipe shown there is from TCon/Thermal Foundation. That's their Constantan, not ours =P