this is just to let you know that ImmersiveEngineering is no longer showing up on twitch launcher when you try to add it to a modpack if its all ready in mods folder like in my case it gave msg below this is most likely a twitch issue as its affecting a few other mods but id though id let you know. you can remove this after reeading.

nvm this is a issue happening to all of twitch including modpack downloading soo ill just report it to them