"ReferenceError:None is not defined" when running online

[wakecarter]

Do you have a transparent polygon?

Pavlovia - ReferenceError: None is not defined

URL of experiment: Description of the problem: I have a task (using the latest version of Psychopy) that presents 1 number digits and 1 picture on each Routine. The picture has an overlaid rectangle polygon shape for valid mouse clicks. The digit and picture presented are drawn from a csv file uploaded to the loop. When running locally everything works fine. However, after syncing and running in Pavlovia, the experiment launches but immediately presents the error “ReferenceError: None is n…