This is a recent issue. I’m in Fundamentals II. I’ve tried force stopping the app and I’ve tried clearing the cache, but this still happens. I should clarify it does usually stop, but sometimes it takes a very long time and then hides the keyboard altogether. Any suggestions? It’s really making it hard to work.
This is a bug with fullscreen mode (hiding the Android navigation bar) on some phones. We have a fix that will be in the next update, but you can avoid the problem for now if you disable fullscreen in the app (keep the “back”, “home”, and “overview” buttons visible).