Material Design on ios - click not working

hello! i have a problem maybe you can help me.

i use f7 with material design, material on ios and android.
but now i have the problem - only on ios - when i tap exactly on eg. the menu icon on iphone the menu will not open. if i click a little bit outside of the icon, i see the wave from material icon and the menu will open.

same problem when i click exactly on the icon back (back-page). other menu-icons will work but these not.

do you know that problem?

ok problem is curious but the effect has to to with ios statusbar overlay… i tried some combinations and now the buttons on top will work. thanks