Sometimes the soft-keyboard gets stuck in the wrong state on the Astro slide while changing between landscape and portrait, and vice versa. Fortunately the work-around is really simple.
Above: A screenshot of the Virtual keyboard being stuck taking up the whole screen.
The work-around?
Tap on the text area to open the soft-keyboard before opening, or closing the Astro.
Above: Screenshot of the soft-keyboard open in portrait.
Above: Screenshot of the soft-keyboard minimised in landscape, while the text box is active.
Now open, or close, the Astro as you originally intended.
Summary
That’s it; It works both ways (opening and closing). And so far, I haven’t seen any cases where it doesn’t work. If you forget, you can simply close and re-open the Astro and get the benefit straight away.
The other way is to simply wait, and it usually sorts itself out within about 15 seconds. While that’s annoying, at least it gets there in the end.