@phoenix_t
Hi, Glitch. Same thing going on for more than weeks with lots of threads about it. Some say keep hitting refresh a few times, yet some times once you get the views working, it doesn't hold then you need to do it again.
Am having the same problem. What I don't understand usually once you initially list you get at least 1 view which I think is the indexing bot. But in my case and others, on existing items couple days ago all views there, then today 0.
I ain't got the brains to make this up (Fantastic Beasts)