Second Opinion Achievement

[Every Villain Is Lemons]

So I've been grinding up achievements for the Medic, I notice something weird going on with "Second Opinion," the Medic achievement that's granted for ubercharging two people at once.

Basically, what I do is that I uber one of my teammates, then uber another before the charge runs out, usually half-way through the charge. I've done this several times now but I can never get the achievement. Am I doing it wrong, or is the achievement bugged or something?

[The Kid Cops #lootget]

If i remember correctly, you have to do it with the stock medi gu. ubercharge one person then quickly switch to healing someone. they should both be urbered for a second; i think that's how it works but idk cause i dont typically play medic