[Android] tapping input field only show text box, does not show keyboard

[tsunekazuomija]

When tapping input fields more than twice in one scene, the OS keyboard doesn't show up and only a white textbox with an OK button appears (like the attached picture). And users have to tap the white textbox to see the keyboard again. This degrades the usability.

[tsunekazuomija]

Now that the progress registration process uses a slider instead of keyboard input, this problem is not as serious as it was.