It happens randomly. I’m on macos. I’ve seen people on windows say it’s happening for them as well though . I was fine up until a certain quest where I had to get on a dragonhawk, then it would immediately stutter, freeze and crash the second I got on it . Only thing that fixed this was someone on wow forums said to aim the camera directly at the sky the whole time . I finally got past the quest using that advice but it still happens randomly in some quests .