Since today's release of Big Sur, my QT application stopped working, no any errors, project runs, just Windows are not shown.
using Python with a Pyside2, writing, and launching with a Pycharms. Was fully functional yesterday - before upgrade. Tested even with a simplest empty window:
app = QApplication(sys.argv)
window = QWidget()
window.show()
sys.exit(app.exec_())
Same nothing shown.
Can anyone suggest what can I check? Where to begin?