Loop for videos randomly breakdowns

Hi. One urgent issue, please help!
PsychoPy v2021.2.3, win10.

I looped videos after an instruction, one slider after each video. The videos were played by VlcMovieStimuli.py.

But, the experiment broke down randomly, maybe the 40th video, maybe 70th.

When it was about to break, it was usually stuck in the slider view, then automatically quit. Occasionally, it just ended even before the instruction’s showing.

And what’s worse is when it broke down, the slider scores did not be saved which should be saved after each rating, leaving an empty excel.

If you have any idea, please help me! Thank you!:blush: