Description of the problem:
The experiment works fine when run locally via Builder view of PsychoPy v3. When I run it on Pavlovia, I can see the first few screens (e.g., instructions), but when I hit space to start the first block I get an error message that I can’t see (it disappears too quickly to read) and then the screen freezes so I can’t move forward into the experiment.
The point at which the error message appears is the first trials loop, so I am guessing it has something to do with that. However, the fact that I can’t get past the final instructions screen makes me think that maybe the issue is with exiting this screen rather than initiating the first loop.