This was fixed long time ago and today I noticed it again…. the overview button in the android mobile app is not working. I click on it and it seems to feel my tap but it does nothing. The rest of the app continues to respond somewhat (e.g. scrolling, expanding, collapsing the outline are posssible). However, the overview menu never comes up by pressing the button.
it is only until I press any of the other buttons to take me to another pane in the mobile view, that th eoverview comes up. And once it is is up, you cannot get rid of it.. .rendering the app unusable.