If one taps on a waypoint its details are displayed including some buttons. In German there is not enough room for the buttons to render their text. All buttons have the same size, but the one "center map" - in German "KARTE ZENTRIEREN" - does not fit and is rendered in two lines. Thus from the final word ZENTRIEREN only its upper half is rendered looking ugly.
An easy solution might be to abbreviate the German text like "KARTE ZENTR."