I assume one of these is you:
https://bugreports.qt-project.org/browse/QTBUG-31730
https://bugreports.qt-project.org/browse/QTBUG-32546
https://bugreports.qt-project.org/browse/QTBUG-33053

Works correctly for me under Qt 4.8.4 on Windows, so perhaps that is a fallback option.