Wyze Watch 47 call hang up/ reject

According to the marketing, you should be able to hang up a call from the watch. I’m getting call notifications with a reject button, but nothing happens when I push, hold, swipe, stomp or otherwise try to activate the button. Does this work for anyone? Any tips? Thanks!

I’ve used it several times, and it ends the call. I just tested from my work phone & it sent the call to vm