Segmentation fault with QLabeledRangeSlider

[patquem]

When I run the code below with QLabeledRangeSlider, most of the time, when I close the widget (clicking on 'x'), I get the following memory error:

Process finished with exit code -1073741819 (0xC0000005)

This memory error disappears when the MyClass2 class is commented out (strange !) or when I replace QLabeledRangeSlider with QRangeSlider.

import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout
import superqt


class MyClass1(QWidget):
    def __init__(self, parent=None):
        super().__init__(parent)
        # range_slider = superqt.QRangeSlider(self)
        labeled_range_slider = superqt.QLabeledRangeSlider(self)


class MyClass2(MyClass1):
    ...


app = QApplication(sys.argv)
main = QMainWindow()
obj = MyClass1(main)
main.setCentralWidget(obj)
main.show()
sys.exit(app.exec())

• Windows 11
• PySide6
• Python 3.10.11
• superqt 0.7.1