Ion-tabs select() destroys scroll-content's margin-top

Hey Guys,

Stackblitz Demo

I have a big issue with the Navigation of Tabs.
On my main page (no Tabs) are simple Buttons wich deliver different navparams to pre select a Special tab.

If you see the demo and click the 2nd button, everything is behind the Header.
That never happens to the first tab, only to the others.

In Detail, its the "margin-top" of the scroll-Content div, that gets deleted.

Maybe I’m just doing sth wrong with the Navigation.