Can't set background image to QTextEdit by using stylesheets in Windows environment

There seems to be a bug with setting a background image in QTextEdit.

This works under Linux environment but not in Windows:

QTextEdit *edit =new QTextEdit;
edit->setStyleSheet("background-image: url(image.png);");

With this workaround background image can be seen under Windows, but background color is not shown as red.

edit->setStyleSheet("background-color: red; background-image: url(image.png);");