streaks not starting, no fix has worked

i have been trying to start a streak with a friend and it simply won't happen, even though we have tried over the course of multiple months. i already have a streak going with one person, so it definitely works, but it just won't happen with this one specific friend—no clue why. the person i have a streak with also tried starting it with that same friend and it didn't work for them either. i have checked settings if there's a way to turn off streaks—maybe they accidentally had it off—but there was nothing. i am very confused lol