Experiment ends early when I use PBT sound

Hey everyone,
In my stop singal experiment if in the audio setting (audio library) I use PBT sound insteat of sounddevice then ny experiment end early right when I start it. Has anyone oncounter such an issue?
I am using the latest version of psychpy (PsychoPy 2021.2.3) on windows 10
thank you!

Ma nishma?

The problem was fixed.The issue seemed to be that the duration_time of the variable on the XL sheet used was some times set to 0.
Thanks to @Avishai_D who helped me out