psychopy.org | Reference | Downloads | Github

Some problem with assignment 5 on dual monitor

I am a beginner for PsychoPy, and I just follow the instruction as the tutorial.
Everything works well, and there is no error showed in output dialog.
But the stroop test example can not show normally.
It means all the monitor would blink at the same time when new windows popped up.
But the pop-up windows did not appear on any monitors.

I also tried to run the same script on the different device
and the problem disappeared. I am just curious of why it happened.

My OS is windows 10 Pro and my notebook made by dynabook.
If there is any idea I can check, for example: monitor setting or others.
If needs more information please let me know.

Best Regards
thanks