I've seen this. It seems to happen when the keyboard isn't quite docked all the way down. The input bar hides behind the keyboard.
On the bottom right corner of all the keyboards are 3 little lines. They are used to drag the keyboard up and down. I would suggest dragging the keyboard up and seeing if the edit bar is down there. If it is, then try to firmly drag the keyboard back down (so that is kind of bounces at the bottom of the screen). On the text keyboard, this usually makes the edit bar shoot up above the keyboard.