None in my classes 🙂 But I commonly hear of shoulder strain in Vinyasa classes that whip through many Chaturangas without A) proper warm up or B) proper alignment.
Some of the binding poses (bound extended side angle or bird of paradise pose) can potentially aggravate shoulder impingement issues.
I do not teach Reclined Hero Pose as I believe it is too high risk for the knees.
And on a personal note, Headstand is risky for me because I have degenerative disc disease and bone spurs in my neck. Oh of course, most of the weight is on the forearms, but it is just too much of a risk to even go there. If I want to invert I’ll do a Handstand or Scorpion Pose (against a wall for now).