Observed Behavior
Sometimes, fonts will be displayed unreadable or with weird characters. It’s not directly reproducable and doesn’t happen always at the same place
Cause
The iOS Application currently uses Qt 5.9.3, and this is a Bug in the QT-Framework, specifically QTBUG-63476.
Solution
We will upgrade to QT 5.9.4 in a future release.
The problem was first reported by @Pordoi in this thread.