Thanks Mark. I am testing it on my iPhone 6 running iOS 10.2.
The page location: I am clicking on the mobile template's "home button" in the upper left hand side of the screen just after the login screen.
When I press the "filter" button, the button area flashes as if it's been pressed, but nothing happens. When I push the "menu" button area in the top right, I get no flash or any other response.