So at some point that isn’t clear it will just stop blowing air directly in front and you get the tiniest bit of breeze coming out on the right. The air doesn’t start blowing out the back too.
What’s odder (you can see this in the video) if you stop it and then start it again it will correct.
not the answer I was expecting but probably the answer I deserve.
I had it pointing at my face at maximum speed yesterday as it was about 37C in my office room at home and suddenly realised I was getting no air at all. Freaked me out.