URL of experiment: https://run.pavlovia.org/ctaher/atonalmusictimeexp/html
Description of the problem: Some participants are reporting the screen turning gray after completing several experimental trials (no problems with the initial demographic questions or practice trial—which is identical to the experimental trials). They seem to be able to make responses (and see their responses), but no longer able to see the questions (most of them in slider form, except for one that they weren’t able to see either). I know one participant was running the experiment on MacIntel and Chrome, and another one was on Windows10.
I have run the experiment several times on every possible browser using MacOs 10.14.6 without any problems, and participants using Windows32 seem to be able to complete the experiment without issues.
I would be very grateful if you could please help me figure out what the issue could be.