Portrait Orientation - top half of screen black

We are using a Vizio 55" (i think) flatscreen using firestick. In landscape mode it looked great, but we need to mount the TV in portrait. 10 taps, with 10 taps per page and 1 column.

Unfortunately, when it is in portrait mode there is a large black space taking up almost the entire top half of the screen. Any idea how to make the taplist fill up the whole screen?

Confirmed, this was a bug! We’ve just rolled out a fix which you should see soon; please try reloading your display if not.

Also, check out the new experimental portrait theme for an even nicer look. Enjoy!