Tab Icons Jump when switching active/inactive

I suspect I’ll fix this by working with the CSS but thought I’d report it to start.

Occasionally on my desktop browser the Ionic icons on my ion-tabs will jump from bottom of the screen up to their position when clicking between. On three tabs, this only affects two at a time: the active tab and the previously active tab as the change happens.

When I test on iPhone 6 it happens every time.

I have same problem.
How can i fix it?

I have also the same problem on iPad Air.
How can i fix it?