Immersive engineering requires Aluminum (alumin-um) when Metallum adds Aluminium (alumin-ium). For this reason, Metallum aluminium cannot be used to craft immersive engineering "aluminum" recipes.
Screenshots:


Metallum version: 1.2.6

AHAHAHAA THIS IS EXACTLY WHAT I'VE BEEN STRUGGLING WITH ALL WEEK
dude, both options are unfortunately correct, I came to the following solution: download crafttweaker and create a file with the .ZS extension in the scripts folder
here is a script you need to enter, I have everything working
var ores = ["plate", "sheet", "stick", "screw", "bolt", "rackwheel", "nugget", "wire", "gear", "ingot", "dust", "rod"] as string[]; for ore in ores { var aluminumOre = oreDict[ore+"Aluminum"]; aluminumOre.addAll(oreDict[ore+"Aluminium"]); }