Qt class as the return type in QSettings().value(...) produces SystemError

The following code raises SystemError: <built-in method value of PySide6.QtCore.QSettings object at 0x...> returned NULL without setting an error at the last line.

from PySide6.QtCore import QSettings

from PySide6.QtGui import QColor

s: QSettings = QSettings('Qt', 'Logo')

s.value('height', 160.0, float)

s.value('color', QColor('#41cd52'), QColor)

However, if I omit the return type and use just
 
s.value('color', QColor('#41cd52'))

everything goes fine and returns QColor. What's wrong with QColor as a type? Actually, the error appears with every Qt class name used as a return type in QSettings.

Initially, this was posted on stackoverflow.com.