I got some problem reports from users with Galaxy S6 and Chrome. This is how meta looks on a Galaxy S6 Chrome 56.0.2924.87. I put this under the bug category because this basically (almost) excludes S6 users from editing posts.
To get this view, the Edit button must be at the bottom of the screen.
If the button is more in the middle, it works. But the users do not know. I found it more by accident during the test.