Qt 6.2.0 Beta3 QCommonStyle does not draw scroll bars at all

Qt 6.2.0 Beta3 QCommonStyle does not draw scroll bars at all

Steps to reproduce

1.) Open Qt\Examples\Qt-6.2.0\widgets\widgets\styles\styles.pro

2.) in main change the line

QApplication::setStyle(new NorwegianWoodStyle);

to

QApplication::setStyle(new QCommonStyle);

3.) Build and run.

4.) Scroll bars do not draw at all.. instead they are black