Looks like this happens on any device in portrait mode. The text in buttons doesn't wrap, for example - and the main content covers up the menu on the left.
Ideally on a narrow-width device, the menu on the left would show/hide with a layered animation. While this is a good material design implementation for desktop and tablet users, it looks like small-form-factor design was forwent.
Ideally on a narrow-width device, the menu on the left would show/hide with a layered animation. While this is a good material design implementation for desktop and tablet users, it looks like small-form-factor design was forwent.