Thanks everyone for your clear answers! I think I was mislead by the phrase "Does not consume extra supplies when it is activated" in the drone description. Now I do understand that it still consume supplies, just one at a time.

That's my whole issue, seems like a bug, but when Brutus is equipped, it is STILL consuming supplies...

Hi, I'm an old player who recently came back. To me drones are a new thing. I have Brutus maxed out and a Booster one. I had Booster equipped for a while, but it was consuming too many supplies, so I equipped Brutus. Brutus is still consuming supplies like Booster did. As I understand, Brutus isn't supposed to use supplies at all, just boost some that are active. I'm almost out of some supplies, nothing I can think of works to make it stop. Anyone has a solution to that? Thanks!