The Electrolytic Separator power isn't reduced after adding energy upgrade (doesn't matter how many) in it. I've tried taking them back out and in, and update to newest version of mekanism 9.2.0.292 with a new world.

why you closed it? the thumbs up should show, that you're not the only one where that bug occurs

Because it's not a bug.

#3781

#3760

#3731

Definitely intended