RedSec challenge reroll bugged

I heard from a youtuber that when you reroll a RedSec challenge you are not supposed to get another RedSec challenge

Pretty sure it's not working as intended

RedSec -> Gauntlet -> RedSec -> BF6 (Gaunlet = RedSec......)

That's 3 rerolls wasted, when I still have 4 RedSec challenges left in my weekly challenges, such a waste