'color' of QToolTip stylesheet not working

[EbyZero]

I am using python 3.11.1 and pyside 6.5.2.
I wrote a style sheet for my tooltips as following and set this sheet on my main window.

QToolTip {
    color: red;
}

But the text of tooltip did not change to red.
I tested the same style sheet on pyside 6.4.2, it worked.
Is there a something changed to applying style sheet between 6.5.2 and 6.4.2?

[EbyZero]

@EbyZero The problem also occurs in widget designer of version 6.5.2, can be checked easily.
I also checked version 6.5.1 and 6.4.3, and both work well.
so I use version 6.5.1 now.

[SGaist]

Hi,

Can you provide a minimal script to test that ?
By the way, on which OS are you running ?

[EbyZero]

@SGaist
Oh I am using windows 10 pro 22H2 19045.3448 build.
You can get the problem through a simple example.

import sys
from PySide6.QtCore import *
from PySide6.QtWidgets import *
from PySide6.QtGui import *


class mainwindow(QMainWindow):
    def __init__(self) -> None:
        super().__init__()
        layout = QHBoxLayout(self)
        button = QPushButton("this is a button", self)
        button.setToolTip("this is a tooltip")
        button.resize(200, 200)
        layout.addWidget(button)
        self.resize(400, 400)

        self.setStyleSheet("QToolTip { color: red; }")


if __name__ == "__main__":
    app = QApplication(sys.argv)
    m = mainwindow()
    m.show()
    sys.exit(app.exec())

Or can see it by using widget designer of pyside6.
In version 6.5.2, you can see that the 'color' of the stylesheet for QToolTip is not working.