ResourceError with QMediaPlayer Example

In order to test the functionality of QMediaPlayer for a personal project, I copied and ran the example code found at https://doc.qt.io/qtforpython-6/examples/example_multimedia_player.html. 

After selecting an AVI file, there was no change in the player. I double-checked, but the selected AVI file does play normally on my computer. I manually added some print statements to see the source of the error, and this is what I got:

• self._player.source(): a PySide6.QtCore.QUrl object that went to the correct file location
• self._player.isPlaying(): False
• self._player.error(): Error.ResourceError
• self._player.errorString(): Not available
• self._player.mediaStatus(): MediaStatus.NoMedia

I also noticed that the self._player.errorOccurred signal didn't seem to fire, as print statements inside the associated slot didn't print to the console. 

I also did a test with some example code for PyQt6 (code 1 from https://stackoverflow.com/questions/73758160/some-questions-about-qmediaplayer-in-pyqt6). It worked with PyQt6, but when I translated the example over to PySide6, I received the same errors as before (ResourceError and NoMedia).