QStyleHints::wheelScrollLines broken

Windows

Changing "Multiple lines at a time" in Mouse Settings, with app running, doesn't make corresponding property (QApplication::wheelScrollLines or QStyleHints::wheelScrollLines) be updated.

QApplication::wheelScrollLines have no signal
QStyleHints::wheelScrollLines, signal (wheelScrollLinesChanged) isn't being emited.

When app is restarted, both properties have the expected value from windows mouse settings.

Workaround attempt:

• Installed a nativeEventFilter for SPI_WHEELSCROLLLINES;
• on event catched, emitted QStyleHints::wheelScrollLinesChanged signal
• property id updated and can be observed from QML
• nothing changes

macOS

Property values seems to be allways 3.