Movie component not working on PsychoPy Builder

OS** (e.g. Win10): Win 10
PsychoPy version (e.g. 1.84.x): v2021.1.3
Standard Standalone? (y/n): yes

I am trying to use videos in my experiment, eg each video is followed by the keyboard response. I followed the steps similar to steps presenting image in psychopy builder. But an error appears and stop the whole experiment whenever I try to run it with movie component added. The experiment works fine without the movie component.

This is the setting for the movie component:

The error:

"d:\Users\MayEe\Desktop\PsychoPy_audiovisual\", line 383, in <module>
    ori=0.0, pos=(0, 0), opacity=asarray(),
TypeError: asarray() missing 1 required positional argument: 'a'
##### Experiment ended. #####

I would be really grateful for any suggestions on how can I solve this.
Thank you!

I think this is a bug - it’s trying to turn opacity into a numpy array when opacity is "". I’ll add a line of code to deal with this in the next bug fix release, in the mean time you should be able to fix this by just setting the value of opacity to 1

Dear TParsons,

I just tried it and the experiment works! I’m so grateful for your reply.
Thank you very much!