A colleague's experiment is not working as we intended it to, and we are unsure why. Some participants did not get to start the experiment at all, whereas others got an error message sometime during the experiment. I am unsure about the following possibilities:
(1) participants ran the experiment in Safari; I know about issues with audio files, but we only used images in this study;
(2) they participated in Canada, whereas the JATOS server is hosted in the Netherlands;
(3) some pictures are used during the experiment, but not that many, as the experiment file is only 3.6 MB (although some participants complained about the loading time; maybe they reloaded the page which could've resulted in an error?)
I tried to attach the .osexp file, but I got a 413 error.