Modpack version
1.79a

Issue
Universal Fluid Cell hidden by default in JEI

I can't even remember what that is, I'll have a look :P

Ahh right, my mind went straight to AE2/Extra Cells
It's hidden on purpose because liquid containers cause lag when viewed in JEI.

Edit: Maybe it's time to enable it after all, will think it over.

IC2 stackable "bucket" :P
Its a bit of a weird one, because it seems to be a 50/50 if it shows up in peoples JEI