Keyboard Transition Issue - Affects Ionic DevApp

I am using Ionic 3.8.0, and I am having an issue with the keyboard transition animation.

When the keyboard slides up, there is a white/black background where the keyboard will go.

When the keyboard slides down, there is a white/black background where the keyboard was.

This issue appears to affect the Ionic DevApp as well. In this case, there is a white background.

Here is a screenshot:

devapp-keyboard

Is there a way to make the keyboard slide without the white/black background behind it?