Different links but same csv file name

Dear Psychopy and Pavlovia community,

I have a problem in that different participant links were recorded with the same name.
For example, there were two different participants who got these links:

https://run.pavlovia.org/studyname/html/?participant=3206
https://run.pavlovia.org/studyname/html/?participant=3207

However, their data was obtained like this:
3206_studyname_2020-08-21_09h29.05.654.csv
3206_studyname_2020-08-21_10h20.48.356.csv

Maybe timing has an effect on this, but I don’t know. Has anyone run into the same problem? Any kind of help, explanation or suggestion would be appreciated!

Thanks in advance for time and effort!